As a kind of solution for decreasing the financial problems of the Islamic society, especially those of underprivileged people, Islam has offered some ways that one of the most effective of which is Khums. In the literal sense, Khums in Islam means one-fifth of something and in the sharia of Islam is one of the most important financial mandatory rules and is generally defined as paying one-fifth of the remainder of your yearly income.

Generally speaking, Khums becomes obligatory in seven cases, but the one which is inscribed to income is considered as the most salient kind. In this case, one has to pay one-fifth of what has remained from his income after subtracting his own expenses on the exact date that he has paid Khums in the previous year; in other words, one should specify a date on which he would pay his Khums every year.

To Which Incomes Khums in Islam Belongs?

There are certain kinds of income that would make the payment of Khums obligatory: agricultural income, commercial and trading income, income earned through renting something (e.g., house, car, etc.), the income that one earns through working for someone else.

On the other hand, in some cases, paying Khums is not necessary anymore, including the inherited money, gifts, rewards, marriage portion (Mahrieh)[i], mortmain property (Waqf), borrowed money, money paid by the insurance company, money paid as a scholarship to university students, money the Khums of which has been paid once, etc[ii] [2].

To whom Should We Pay Khums in Islam?

Basically, Khums is divided into two parts, one is given to Imam – who is your Religious expert (Marja Taqlid) or other qualified religious experts - and the other part is for descendants of Prophet Muhammad (PBUH&HP) (Sadaat) who are poor, orphan or faced with difficulty on their journey.

Why Do We Pay Khums in Islam?

Generally speaking, paying Khums brings about two kinds of effects, in two scales: first of all spiritual effects upon each and second, financial advantages upon the whole society. 

1. Spiritual and Individual:

As one of the forms of serving God, Khums should be paid with the intention of Allah’s satisfaction; accordingly firm belief and true faith guarantees performing this task. What’s more, engaging in this activity will arise a sense of generosity and philanthropy in the person, wipes away greediness and avarice from his soul and provides the necessary condition for benefiting from Allah’s spiritual and material blessings.

Furthermore, by paying a certain amount of money to the religious experts (Marja Taqlid), one feels involved in the practice of spreading the religion and Islamic ideology in the society and will always remain in the right side, helping the people who follow God’s commands against those who have transgressed from His way.

Another result of performing the holy task of Khums is that it will make the person more financially organized and dutiful, feeling responsible for underprivileged Muslims in the society and striving in the way of Allah and His Prophet (PBUH&HP).

2. Financial and Social:

As we already know, one of the main reasons for sending prophets was to provide the necessary grounds for establishing social justice through people themselves. So, they brought many rules that would pave their way to achieve this aim, one of the most important of which is paying Khums.

In fact, Khums acts as an equalizer of wealth within the Islamic community; Each individual with the intention of God’s satisfaction and true faith, donate a part of the remainder of his earnings to one of the most reliable, faithful and God-fearing people in the society - religious expert - in order for him to spend it for the purpose of improving the society. 

Paying Khums provides the sufficient resources for the people who are engaged in preaching Islam in the world and in some way reinforce the Islamic government. This money will help religious experts to spend their time and energy in inviting people to religion, answering their doubts and clarifying Islamic rules and regulations for them.

Moreover, this holy task will simultaneously produce two effects in Islamic society: involving religious experts in people’s financial difficulties will result in a closer and stronger relationship between them on one hand, and being responsible to give certain amount of money away, on the other hand, will make people more attentive to one another’s problems, create a bond between different classes within the society and reduce the gap between them through fairly distributing the wealth. 

Notes:

[i]. A mandatory payment, in the form of money or possessions paid by the groom, or by the groom's father, to the bride at the time of marriage that legally becomes her property [1].

[ii]. It is noteworthy that the cases above are varied according to different religious experts.

References:

1. Mahr
2. Ayatollah Khamenei, Resale Amuzeshi (didactic treatise), Khums rules and regulations

Ramadan is the 9th month of the Islamic calendar. The root of the word in most of the dictionaries refers to strong heat or burnt earth. Some commentators use this meaning to refer to the heat and hardship that people endure during Ramadan fasting. However, there is another meaning for the root of the Arabic word “Ramadan” which refers to the clouds and the rain at the end of summer and beginning of fall. [1] Prophet Muhammad (PBUH&HP) says: “Indeed, it is called Ramadan because it burns the sins”. [2] In this narration both meanings can be adopted, since based on the first meaning it burns the sins, and based on the second meaning, it quenches the fire that is the consequence of sins.

 Contemplating on the verse of the Quran “The month of Ramadhan is one in which the Quran was sent down as guidance to mankind, with manifest proofs of guidance and the Criterion…” (2:185), one can conclude that the second meaning that was mentioned for the word “Ramadan” is more suitable to describe this month; a month in which blessings and bounties of Allah (SWT) shower on His servants. One of those blessings as mentioned in the above verse is the Holy Quran which was revealed in Ramadan on the greatest night of the year: “Indeed We sent it down on the Night of Ordainment” (97: 1). In another verse, Allah (SWT) mentions, “We sent it down on a blessed night.” (44:3)

The three mentioned verses have some points that can help us think and discover if the month of Ramadan became a holy month after Prophet Muhammad (PBUH&HP) brought Islam, or was it always a holy month throughout history? 

What does the Quran tell us about the history of Ramadan?

As mentioned in the above verses and other verses of the Quran, Allah (SWT) tells us that:
1-    The Quran was revealed in the Holy month of Ramadan. (2:185)
2-    The Quran was revealed on the night of decree. (97: 1)
3-    The night of decree is so high in a position that no normal human being can understand its status and value: “And what can make you know what is the Night of Decree? The Night of Decree is better than a thousand months.” (97:2-3) 
4-    According to verse 44: 4, every firm ruling is dispatched on that night. These rulings are the decrees concerning the way the affairs of the world should run until the same time next year. Such a concept which is related to the creation should have been an eternal matter and could not have come about just by the advent of Islam. 

By doing simple math on the above verses, we can conclude that before the Quran was revealed, the night of decree existed as a blessed night, and by Allah’s will the Quran was revealed in this blessed night. Therefore, Ramadan always existed as a blessed month in which the night of decree has always been a prominent night. 

History of fasting 

The word fasting is mentioned a few times in the Quran when Allah orders Prophet Zachariah (PBUH) and Saint Mary to avoid talking to people: “Then if you see any human, say, ‘‘Indeed I have vowed a fast to the All-beneficent, so I will not speak to any human today.’’ (19:26) 

The above verse shows that there have been different traditions of avoiding specific things, which has been called fasting. However, the verse of the Quran that makes fasting an obligation on Muslims says: “O you who have faith! Prescribed for you is fasting as it was prescribed for those who were before you, so that you may be Godwary.” (2:183)

The commentators of the Quran have disagreed about the purport of this verse. Some argue that the phrase as it was prescribed for those who were before you is referring to the concept of fasting only. It means that the previous nations were told to fast like you are told, however, the verse is silent about the time or the way of their fasting. Others, say that as it was prescribed for those who were before you means that the fast of Ramadan was prescribed for them exactly in the same way that it is prescribed for you. 

Looking into the rules and descriptions of fasting in Christian and Jewish traditions would certainly support the first view since neither of these religions have fasting in Ramadan as part of their traditions. However, some commentators, quoting Hasan al-Basri have argued that the verse refers to Christian fasting which was originally ordained to be in Ramadan but they changed it over time. They say that fasting during the Lent season which in Christian tradition is related to the testing of Jesus in the wilderness is not the original concept of fast in Christianity. Rather, what was originally prescribed for them was the fast of Ramadan, but since as a lunar month it circulated over different seasons, the leaders of the church decided to fix it in the spring and add ten days to it as an atonement for such a change. It was then called Lent and related to the 40 days of Jesus’s tests in the wilderness.

However, we have to regard this as an odd view, since nothing in history can support such a development. Thus, as most of the commentators say, as it was prescribed for those who were before you, means that people of previous Scriptures were also told to fast, although not exactly in the month of Ramadan. 

However, there is a third view here which can be regarded as a combination of the above two views, and as a view that makes the sanctity of Ramadan of a primordial nature. It is narrated from Imam Sadiq (AS) that “Allah (SWT) has not made fasting of Ramadan compulsory on any nation before Muslims.” He was asked about the interpretation of the verse “as it was prescribed for those who were before you”, where he replied: “Allah had made fasting of Ramadhan compulsory on the Prophets before you, but He prioritized this nation by it and made fasting an obligation on the Prophet and his followers.” [4] This means although fasting of Ramadan was not prescribed for previous nations, the past prophets used to honor Ramadan by fasting during the month. Something similar to this is reported about Hajj too. It is narrated that although Hajj is an exclusive obligation of the nation of Islam, however, prophets of the past nations including Moses and Jesus performed Hajj.  

It is also narrated that the first Prophet who fasted was Prophet Adam: “when Adam ate the fruit of the forbidden tree, that fruit remained in his stomach for thirty days, and it was then that Allah made the thirty days of fasting obligatory on Adam and his generation.” [5] 

In conclusion, what could be firmly said, is that fasting is not an obligation specific to Muslims only. All nations who received Scriptures were also told to fast like Muslims are told to fast, although the details about how and when they must fast may have been different. 
References: 

1. Ramadan
2. Mizan al-Hikmah, Hadith No. 7441
3. Man- la- Yahzuruhul faqih, vol. 2, p. 99
4. Man- la- Yahzuruhul faqih, vol. 2, p. 74
5. Imam Fakhr-e Razi, Tafseer Surah Al-Baqarah, P. 59