Throughout the history of humankind, strong women have always been a source of inspiration and growth. Women who, alongside men, brought significant changes to the world, making it a better place to live and to prosper. One of the most prominent and praised women in the history of Islam is Lady Khadija (AS), Prophet Muhammad's (PBUH&HP) wife and companion, who had a vital role in the spread of Islam. She was one of those women whose influence and exceptional characteristics still resonates throughout the ages and among many generations after her. 

In what follows, we will look at the life of Lady Khadija (AS), this distinguished personality. 

Birth and Lineage

Known as Khadīja al-Kubrā (AS) and Umm al-Mu' minīn (the Mother of Believers), Lady Khadija (AS) was born fifteen years before Am Al-Fil [i]. Therefore, her birth date is approximately 555 A.D. Her father, a famous figure in the Quraysh tribe in Mecca, was Khuwaylid b. Asad b. Abd al-Uzza b. Qusayy [1] and her mother was Fatima bt. Za'ida [2]. According to some sources, Lady Khadija (AS) had a distant relation in lineage with Prophet Muhammad (PBUH&HP), and their roots went back to the same ancestors [3]. 

Lady Khadija (AS)'s Reputation before Marrying Prophet Muhammad (PBUH&HP)

The available information concerning Lady Khadija (AS) before marrying Prophet Muhammad (PBUH&HP) is limited and scarce. Nevertheless, she was known to be a wealthy merchant who employed others to work for her and benefited from a part of the profit [4]. Due to her ancestral nobility, she was of high social status and respected among her people. As Ibn Sayyid al-Nas said: "She was an honorable and wise lady, and God granted her with His blessing." [5]

Meeting Prophet Muhammad (PBUH&HP)

According to some sources, before meeting Prophet Muhammad (PBUH&HP) in person and starting a business relation with him, Lady Khadija (AS) had heard about his trustworthiness and honesty. Therefore, she asked Muhammad (PBUH&HP) to join her and help her in expanding her business [6].

Prophet Muhammad (PBUH&HP) went at least five business trips for Lady Khadija (AS), the most important of which that led to their marriage was the business trip to Sham. Prophet Muhammad (PBUH&HP) went back from this trip with the good news of their financial success and profit, which impressed Lady Khadija (AS) and made her decide to choose him as the head of one of the greatest caravans traveling to Sham. The result of these trips and Prophet Muhammad's (PBUH&HP) impressive actions, was Lady Khadija's (AS) fondness toward this honest man [7]. After that, she proposed marriage to Prophet Muhammad (PBUH&HP) [8].

Marriage to Prophet Muhammad (PBUH&HP)

Despite the disputes over Lady Khadija's (AS) marriage before Prophet Muhammad (PBUH&HP), which claim her to be a widow, many authentic sources believe that Lady Khadija (AS) did not marry anyone before the Prophet (PBUH&HP) and it was her first marriage [9]. This is also proved by looking at the cultural and intellectual status of Lady Khadija (AS) in Hijaz, which made it improbable for her to marry anyone from lower-status tribes [10]. 

While receiving many proposals for marriage from the heads of Quraysh, offering her vast amounts of money and wealth, she refused all and instead fell in love with the honesty and righteousness of Prophet Muhammad (PBUH&HP). The news of this proposal shocked Lady Khadija's (AS) family and relatives, who couldn't believe her to be willing to marry a man with lower financial status and younger than herself [11]. 

The proposal and marriage ceremony of these two significant figures, who made an example of their marriage to the generations that followed them, was held two months after the business trip to Sham, which was mentioned above [12]. According to many sources, at the time of their marriage, Prophet Muhammad (PBUH&HP) was twenty-five, and Lady Khadija (AS), forty years old [13]. After their marriage, she dedicated all her wealth to her husband and left the management of her business to him. Lady Khadija (AS) was the first wife of the Prophet Muhammad (PBUH&HP), and during her life, he did not marry another woman. 

Lady Khadija (AS)'s Children

There seems to be disagreement in the number of Lady Khadija (AS) and Prophet Muhammad's (PBUH&HP) children. The number ranges from six to eight, among which they include two sons and four daughters [14]. Some historians believe that Lady Fatima (AS) was the only daughter of the Prophet Muhammad (PBUH&HP) and Khadija (AS) and the other daughters were their adopted children [15]. 

Embracing Islam

After receiving the call to prophethood in the Hira cave, Prophet Muhammad (PBUH&HP) first told Khadija (AS) and Imam Ali (AS) about his prophetic mission. She totally trusted her husband to be an honest man and believed in his great cause; therefore, she was the first woman who accepted Prophet Muhammad's (PBUH&HP) invitation to Islam and became a devout Muslim. Imam Ali (AS) and Lady Khadija (AS) were also the first ones who performed prayer (Salat) alongside Prophet Muhammad (PBUH&HP) in the mosque [16]. 

Sacrifices for Islam and Muslims

As a wife, Lady Khadija (AS) always supported Prophet Muhammad (PBUH&HP) in fulfilling his extraordinarily challenging and demanding mission of guiding people toward the path of Allah. At the times when people hurt the Prophet (PBUH&HP) with their offenses and unfair accusations, Khadija (AS) was there to soothe him, wipe his sadness away and give him hope to endure the hardships of this holy mission. She also financially supported Prophet Muhammad (PBUH&HP) when they were suffering from unfair economic sanctions in the Shaib al-Abi Talib [17]. Prophet Muhammad (PBUH&HP) always appreciated Lady Khadija's (AS) unbounded help and support and said: "No money was profitable for me the way the wealth of Khadija (a) was." [18]

Notable Characteristics 

One of The Best Women of all Times

Prophet Muhammad (PBUH&HP) always loved and praised Lady Khadija (AS) for her great and exemplary personality. He used to consider her among the four praised women of all time, including Asiya [ii], Mary, and Lady Fatima (AS) [19]. She was not only a prominent and influential figure of her own time but also set an example for the generations that followed her. Her power in merchandise and business at one point, her courage, and insight in choosing a perfect husband by herself and her devotion to her married life at another, made her an ideal role model for the women all around the world.

The Wise Lady

As it was mentioned above, Lady Khadija (AS) was a well-known woman before her marriage to Prophet Muhammad (PBUH&HP). She was famous for her knowledge and sagacity, which manifested in her thriving business, whose fame reached all over the Hijaz. Despite the patriarchal society of her time, she had managed to establish herself as a powerful businesswoman who won the respect of great heads of the tribes and men who considered women inferior to themselves [20].   

The Modest Lady 

While having an active and productive role in society, Lady Khadija (AS) always preserved her modesty and presented a modest manner in her interactions with men. Doing so, rather than being praised for her physical beauty, she was honored and respected for her insight and chastity, which encouraged many of the powerful men of her time to ask her hand in marriage. Yet, since she was more interested in finding an honest and virtuous man to marry, rather than a merely wealthy man, she refused all her suitors. Finally, she found these features in Prophet Muhammad (PBUH&HP) and chose him as her perfect match. 

The Devout and Beloved Companion

When she made a vow of marriage to the honest Muhammad (PBUH&HP), she knew that her life with this man would be different. When Prophet Muhammad's (PBUH&HP) mission began, she realized how much he was under pressure and needed her companionship and support. People didn't believe in him, didn't listen to him, and refused to be guided through the words of Allah, especially in the first years of his invitation to Islam. Yet, at home, he had someone who was always by his side, wipe his sadness away, and had faith in his call.  Prophet Muhammad (PBUH&HP) never loved any woman as Lady Khadija (AS), and never forgot about her love and sacrifices, always remembering her as a unique and precious person in his life [21]. 

Lady Khadija (AS)'s Demise

Lady Khadija (AS), this honorable woman, passed away in the month of Ramadan ten years after Prophet Muhammad's (PBUH&HP) call to prophethood in 619 A.D. She was 65 years old at the time of her demise [22], [23]. She was buried by Prophet Muhammad (PBUH&HP) in al-Ma'lat Cemetery, on the slopes of Mount Al-Hajun in Mecca. This sorrow was shortly followed by the demise of Abu-Talib, Prophet Muhammad's (PBUH&HP) uncle. These tragic incidents afflicted Prophet Muhammad (PBUH&HP) with deep grief to the extent that he named that year as "the year of sorrow and pain (Am al-Huzn) [24].

Notes:

[i] Literally meaning the year of the Elephant, it is the year in which Abraha, the king of Yemen, started a huge military expedition toward Mecca to destroy Ka'ba. As he had an army with war elephants, the year turned to be known as the year of the Elephant.
[ii] Pharaoh's wife at the time of Prophet Moses (PBUH) 

References:

1. Ibn Athīr al-Jazarī, ʿAlī b. Muḥammad. Usd al-ghāba fī maʿrifat al-ṣaḥāba. Beirut: Dār al-Fikr, 1409 AH. Vol.6, p.87.
2. Ibn ʿAbd al-Barr, Yūsuf b. Abd Allah. Al-Istīʿāb fī maʿrifat al-aṣḥāb. Edited by ʿAlī Muḥammad al-Bajāwī. 
3. Abu l-Faraj al-Isfahani, Maqatil al-talibiyyin, p.29. 
4. Ibn Kathīr al-Dimashqī, Ismāʿīl b. ʿUmar. Al-Bidāya wa l-nihāya. Beirut: Dār al-Fikr, 1407AH-1986. Vol. 2, p. 293. 
5. Ibn Sayyid al-Nās, Abū l-Fatḥ Muḥammad. ʿUyūn al-athar fī funūn al-maghāzī wa l-shamāʾil wa l-sayr. 
6. Abd al-Malik Ibn Hisham, Sirat Ibn Hisham, Edited by Mustafa Saqa. Beirut: Dar Ahya al-Tarath al-Arabi, vol.1, pp.187-188. 
7. ibid, vol.1, pp.199-200. 
8. Ibn Sayyid al-Nās, Abū l-Fatḥ Muḥammad. ʿUyūn al-athar fī funūn al-maghāzī wa l-shamāʾil wa l-sayr. Vol.1, p.63. 
9. Ibn Shahrāshūb, Muḥammad b. ʿAlī. Manāqib Āl Abī Ṭālib. Qom: ʿAllāma, 1379 AH. Vol. 1, p. 159.
10. ʿĀmilī, Jaʿfar Murtaḍā al-. Al-Ṣaḥīḥ min sīrat al-Nabīyy l-aʿẓam. Beirut: Dār al-Hādī, 1415 Ah. Vol. 2, p. 123.
11. Abd al-Malik Ibn Hisham, Sirat Ibn Hisham, vol.1, p. 189. 
12. Maqrizi, Ahmad Ibn Ali, Imta al-Asma, Dar al-Kutub al-Ilmiyah, 1999. Vol.1, p.17. 
13. Muhammad Ibn Sa'ad, Al-Tabaqat al-Kabir (The Book of the Major Classes), vol.8, p.17. 
14. Ziriklī, Khayr al-dīn al-. Al-Aʿlām Qāmūs trājm l-ashhar al-rijal wa l-nisāʾ min al-ʿArab wa l-mustaʿribīn wa l-mustashriqīn. 
15. ʿĀmilī, al-Ṣaḥīḥ min sīrat al-Nabī, vol. 2, p. 207-220.
16. Ibn ʿAbd al-Barr, al-Istīʿāb, vol. 3, p. 1089.
17. Shaykh Tabarsi, I'lam al-Wara bi A'lam al-Huda, vol.1, p.125.  
18. Majlisī, Muḥammad Bāqir al-. Biḥār al-anwār al-jāmiʿa li-durar akhbār al-aʾimmat al-aṭhār.
19. Ibn Kathīr, al-Bidāya wa l-nihāya, vol. 2, p. 129.
20. Abu l-Hasan 'Ali b. Muhammad Julabi, Manaqib al-Imam Ali b. Abi Talib, vol.2, p.422. 
21. Sayyid Ali b. Tawus al-Husayni al-Hilli, Al-Tara'if fi ma'rifat madhahib al-tawa'if, vol.1, p.291. 
22. Ibn ʿAbd al-Barr, al-Istīʿāb, vol. 4, p. 1817.
23. Ṭabarī, Muḥammad b. Jarīr al-. Tārīkh al-Ṭabarī. Edited by Muḥammad Ibrāhim.
24. Maqrizī, Imtāʿ al-asmāʾ, vol. 1, p. 45. 

The responsibilities of a Muslim towards family, relatives and other Muslims in general, were already reviewed in an article. Here one's responsibility in Islam towards neighbors, friends, and enemies are discussed.

The Responsibility in Islam Towards Neighbors 

Doing good to neighbors is highly emphasized in Islamic teachings: “Worship Allah and … be good to … the near neighbor and the distant neighbor” (4:36). Prophet Muhammad (PBUH&HP) advised Imam Ali (AS) to honor the neighbors, even if they are disbelievers (Kafir) [1]. Imam Ali (AS) said that Prophet Muhammad (PBUH) used to invite repeatedly to doing good to neighbors such that we thought he (PBUH) was going to consider an inheritance for them [2].

The rights of neighbors on one another as an important responsibility in Islam, are:

To honor them in their presence, and to help and care about them when they are absent [3]. It includes visiting neighbors when they are sick, to assist their funeral, and to offer them your tasty meals that smell good [4];
To keep their secrets. It means that not to look for their faults and errors. And, if ever you become aware of some of their faults, do not reveal them but try to conceal their deficiencies [3];
Do not leave neighbors alone in difficulties [3]; e.g., help them in case of financial needs [4];
Do not be jealous of them if God grants them some blessings [3];
Ignore their errors to yourself and forget about them. If ever they do wrong to you unintentionally, be patient and in peace with them [3];
Do not let others talk behind their back and reveal the deficiencies of your neighbors here and there [3].
Giving priority to the neighbors. It is narrated from Imam Hassan (AS) that Lady Fatima al-Zahra (AS) used to pray firstly for the neighbors and then for members of the family [5]. 

According to Imam Sadiq (AS), having good behavior and interaction with neighbors increases the provision (Rizq) [6]. Prophet Muhammad (PBUH) advised to respect neighbors as much as one should respect his\her mother [6] and he (PBUH) said: “God bless whoever does good to his\her neighbors” [7]. On the contrary, whoever sleeps peacefully at night while one of the his\her neighbors is hungry, God will deprive him of his blessings on the judgment day [8]. The same will happen to whoever annoys his\her neighbors [1]. 

Take your time and think about these attitudes towards the neighbors. Life will be surely much agreeable and peaceful if we improve our social interactions with our neighbors within the Islamic framework.

The Rights of Friends and Companions

Having a good companion is known as a blessing; on the contrary, a bad one is like a disaster [9]. Friends and companions have certain rights one over the other including:

To interact with them with generosity as much as you can, otherwise, be fair to them [3];
To be smiling when you meet them and to receive them modestly [3];
To respect them as they respect you [3];
To be the first one who does good to the other one, otherwise, try to compensate properly [3];
To help them in difficulties and whenever they are in need, as Imam Ali (AS) advised to [10];
To hold them in great affection according to Imam Ali (AS) [11];
Not to reveal their deficiencies and mistakes;
To encourage them in obedience to God and to prevent them from committing sins [3];
To be honest with them and not to cheat [3]; e.g., nor to talk behind their back neither to reveal their deficiencies and to guard their secrets;
To be trustworthy whenever they rely on you [3].

The Responsibility in Islam Towards the Enemies

The enemy here means a person whom one is in conflict with. There are some recommendations in Islamic resources on how to treat enemies and what is one's responsibility in Islam towards them:

To be fair with them [12]. According to Imam Sadiq (AS), a real believer (Mu'min) does not oppress his\her enemies [13];
To testify in favor of the enemies if they are right [14] even if your testimony is against yourself [3];
To keep the promises you made to your enemies [15];
To forgive and tolerate them, if possible [3]. According to Imam Ali (AS), there is a virtue in forgiving enemies [16];
To talk nicely and shortly with whoever you have complained of [3], to argue with them in a way that is best (16:125), and not to ignore their rights if ever you are wrong [3].

References:

1. M. Shoueiri “Jami’ al-Akhbar”, p. 84.
2. Shaykh al-Kulayni, “Al-Kafi”, vol. 7, p. 51.
3. Imam Zayn al-'Abidin (AS), “Treatise On Rights (Risalat al-Huquq)”.
4. responsibility towards others
5. Shaykh al-Saduq, "Ilal Al-Shara'i", p. 181
6. Shaykh al-Kulayni, “Al-Kafi”, vol. 2, p. 666.
7. Shaykh al-Saduq, “Al-Amali”, p. 288.
8. Shaykh al-Kulayni, “Al-Kafi”, vol. 2, p. 668.
9. “Ghurar al-Hikam wa Durar al-Kalim”, T. 4719-4720.
10. “Nahj al Balaqa”, p. 494.
11. “Ghurar al-Hikam wa Durar al-Kalim”, T. 9665.
12. Ibn Shu’bah, “Tuhaf al-Uqul”, p. 88.
13. Shaykh al-Kulayni, “Al-Kafi”, vol. 1, p. 47.
14. Shaykh al-Saduq, “Sifat al-Shia”, p. 24.
15. “Nahj al Balaqa”, p. 53.
16. “Ghurar al-Hikam wa Durar al-Kalim”, p. 435.