The concept of responsibility in Islam includes a wide range of matters. Human beings have certain responsibilities in Islam toward others and themselves. All creatures in this universe are naturally inclined to move toward the perfection considered for each of them. They are created in the most proper form, then, have been provided with the conditions and requirements that God has planned (20:50).

Nonetheless, none of them knows neither the path that they should pave nor the final target; except humans. According to the Quran, human beings are created for specific reasons (23:115), and they have duties and responsibilities (75:36). The most prominent responsibility in Islam that one has is towards God, as explained in the first part of the article. He\she is also responsible towards him\herself. This category of duties is discussed here.

The Rights that One Has Over Him\herself as His/her Responsibility in Islam

According to Imam Sajjad (AS), the duties of every human being towards him\herself are to serve only God by all his\her capabilities and every part of the body; and, to respect the rights of each part of the body [1]. Hence, the responsibilities in Islam of every human being towards him\herself can be divided into spiritual and physical items.

Responsibility in Islam towards the Soul

According to the Quran, God breathed into the human being of His [created] soul after he was proportioned (38:72). This makes the human’s soul of great value in Islam. Accordingly, every individual has certain responsibilities towards his\her valuable soul. These duties can be summarized in one sentence: to utilize the soul in the way of God.

That is to apply all spiritual capacities in the obedience to God and to do what brings bout God’s satisfaction. This requires one to keep the soul alive and pure by practicing what is ordered to or invited to in Islamic teachings like prayer (Salat), fasting (Sawm), pilgrimage (Hajj), etc., also by preventing any harm to the soul such as anxiety, depression, etc. 

The Rights that the Parts of the Body Have and One's Responsibility in Islam toward them

One’s acts and words form and determine the his\her path in life. He\she does various acts (including good deeds, what is obligatory (Wajib) or recommended (Mustahab)) with different parts of the body and verbally thank God (in the form of prayer) with the help of tongue and mouth. Hence, whatever one does concerning the obedience of God depends also on the parts of the his\her body. Therefore, he\she has some responsibilities towards them.

The Rights of the Tongue

Of the rights of the tongue are to [1]:

Avoid foul language and the sins that one might commit with the tongue, such as backbiting (ghibah) and slander. Prophet Muhammad (PBUH) said that: “Do not insult others, this turns them into your enemies” [2], and: “Whoever divulges the flaws and faults of another Muslim, God will reveal his flaws” [3]; 
Accustom it to saying pleasant beneficial words;
Force it to talk nicely and politely (2:83);
Stop it from talking too much and stay silent unless talking is beneficial; “Silence is a door to wisdom, it brings affection and guides to every blessing.” [4], and: "whoever believes in God and the Hereafter should say beneficial words, otherwise stays silent.” [5];
Think about what you are going to say and judge the words before you start talking because a wise person will be judged by his words; “A faithful person … thinks about his words first, and then says those words” [6].

The Rights of the Ears

The ears are like the doors to the heart; they transfer every word with either a positive or negative influence on the heart [1]. Imam Ali (AS) has prevented us from listening to the words without any advantage and benefit as they darken the heart and cause us to be blamed [7]. For example, whoever listens to backbiting is a partner of the backbiter [8]. Hence, one should control the ears to hear only nice and useful words that purify the heart or encourage good behavior [1]. 

To be continued. 

References:

1. Imam Sajjad (AS), Treatise On Rights (Risalat al-Huquq).
2. M. al-Kulaynī, “Al-Kafi”, vol. 2, p. 360.
3. Al-Monzeri, “Invitation and Intimidation”, vol. 2, p. 239.
4. M. al-Kulaynī, “Al-Kafi”, vol. 2, p. 113.
5. M. al-Kulaynī, “Al-Kafi”, Introduction, p. 6.
6. W. al.Hilli, “Tanbih al-khawatir wa nuzhat al-nawazir”, vol. 1, p. 106.
7. “Ghurar Al-Hikam Wa Durar Al-Kalim”, T. 6234.
8.  A. Saberi Yazdi, “Al-Hokm Al-Zahera”, p. 558.
    

After Prophet Muhammad’s (PBUH & HP) death, Abu-Bakr and Umar ibn Khattab took over the caliphate (the kingdom of the Muslims). One of their most important yet harmful decisions was that they ordered all the Muslims to stop narrating or writing hadiths of the Prophet (PBUH & HP). They argued that if people narrate the hadiths of the Prophet (PBUH & HP), they may confuse verses of the Quran with them or they may forget about memorizing and learning the verses of the Quran. Once Abu-Bakr gathered all people and told them,

[Today] you narrate hadiths from the Prophet while you narrate different and paradoxical hadiths and indeed people after you will do worse. Therefore, do not narrate hadiths from the Prophet anymore and if someone wanted you to narrate, tell them that “we have the Holy Quran. So, follow its rules.” (1)

Qurzah ibn Ka’b (one of the companions of the Prophet) said, 

When we were going to Iraq, Umar accompanied us [until we left the city]. He said, “do you know why did I accompany you?” we said, “because you wanted to respect us”. He said, “in addition to that, I wanted to tell you that you are going to a place where its people recite the Quran like the bee buzz; hence do not occupy their minds with hadiths. Teach them the Quran and tell them a few hadiths of the Prophet (not too many) and I will do just like you. (2)

What they said is actually against the verses of the Holy Quran,

[We sent them] with clear proofs and written ordinances. And We revealed to you the message that you may make clear to the people what was sent down to them and that they might give thought. (16:44)

As you see, Allah almighty says that the Holy Quran needs to be interpreted by the Prophet (PBUH & HP), and without his hadiths, the Holy Quran cannot be completely useful. Writing the hadiths of the Prophet was forbidden for 100 years because of Abu-Bakr and Umar’s orders. Due to their decision, many hypocrites seized this opportunity to make fake hadiths and many people forgot about the Prophet’s (PBUH & HP) lessons.

Imam Baqer (AS)

Imam Baqer (AS) is the fifth Shiite Imam and Imam Sajjad’s (AS) son. His given name was Muhammad, but he was called Baqir al-Olum (shortened to Baqir), because he was a knowledgeable person. The word “baqir” means “splitter” and it means that Imam Baqir (AS) had split the knowledge and started a knowledge revolution as he was a very knowledgeable person. It is said that the Prophet (PBUH & HP) named him Baqir so many years before his birth. (3)

Imam Baqir (AS) lived when the Umayyad dynasty had gotten so weak due to the wars they had, and because of this, Imam Baqir (AS) had the chance to tell people about the teachings of the Prophet (PBUH & HP) after they were forgotten or distorted. He said,

Watch these people who are like the scribes and the monks who hide the teachings of the Quran and distort it… watch them they saved the words of the Quran but distorted its meaning and they are always with the kings and royalties. When the greedy kings and leaders are overthrown, they are with the ones who have more wealth and power and this is the only thing they know. (4) 

Due to the political circumstances, Imam Baqir (AS) was able to have classes and teach people what he had learned from his ancestors in various fields including laws, doctrine, tawhid (monotheism), imamate, interpretation of the Quran, ethics and the like. Accordingly, most Shiite hadiths belong to Imam Baqir (AS) and his son, Imam Sadiq (AS). 

About his father, Imam Sadiq (AS) says,

Before Imam Baqir (AS) Shias didn’t completely know how to perform hajj, what is halal, and what is haram until the time Imam Baqir (AS) performed hajj for them, taught them how to do it, and what is halal and what is haram. Then the Shias didn’t need the Sunnis anymore and the Sunnis started to learn from them instead. (5)

As we said before, during the first three caliphates, the laws of Islam and the teachings of the Prophet (PBUH & HP) were mostly distorted or forgotten by people, and due to this fact, Imam Baqir (AS) had to repeat the lessons for people, especially the Shias. 

Imam Baqer (AS) in the view of the Sunni scholars 

The Sunni scholars all respect Imam Baqir (AS) and believe that he was among the most knowledgeable scholars in Islamic history. They have narrated the hadiths of the Prophet (PBUH & HP) from him and some of their scholars were his pupils.

Abdullah ibn Ata’, one of the Sunni scholars who lived during the same time as Imam Baqir (AS) says,
I haven’t seen anyone like Abu-Jafar (Imam Baqir) whose knowledge of the Sunni scholars seemed so little compared to him. Indeed, I saw Hakam ibn Utaibah (one of the greatest Sunni scholars of those times) with him and Hakam was like a pupil to him. (6)

Resources 

1.  Tadhkirah al-Huffaz, az-Zahabi, vol.1, pg.9
2.  Tadhkirah al-Huffaz, az-Zahabi, vol.1, pg.12
3.   Al-Kafi, Sheikh Koleini, vol.1, pg.469
4.   Al-Kafi, Sheikh Koleini, vol.8, pg.54
5.  Tafsir, al-Ayyashi, vol.1, pg.252 & 253
6. Tarikh Damashq, ibn Asakir, vol.54, pg.278