Allah's Apostle said: Islam is based on (the following) five (principles):

1. To testify that none has the right to be worshipped but Allah and Muhammad is Allah's Apostle.

2. To offer the (compulsory congregational) prayers dutifully and perfectly.

3. To pay Zakat (i.e. obligatory charity) .

4. To perform Hajj. (i.e. Pilgrimage to Mecca)

5. To observe fast during the month of Ramadan.

When the following verses were revealed: 'Eat and drink until the white thread appears to you, distinct from the black thread' and of dawn was not revealed, some people who intended to fast, tied black and white threads to their legs and went on eating till they differentiated between the two. Allah then revealed the words, 'of dawn', and it became clear that meant night and day.

I heard Allah's Apostle saying, "The example of a Mujahid in Allah's Cause-- and Allah knows better who really strives in His Cause----is like a person who fasts and prays continuously. Allah guarantees that He will admit the Mujahid in His Cause into Paradise if he is killed, otherwise He will return him to his home safely with rewards and war booty."

The Prophet was the most generous person, and he used to become more so (generous) particularly in the month of Ramadan because Gabriel used to meet him every night of the month of Ramadan till it elapsed. Allah's Apostle used to recite the Qur'an for him. When Gabriel met him, he used to become more generous than the fast wind in doing good.

A man came to Allah's Apostle and said, "O Allah's Apostle! I am ruined!" The Prophet said, "Waihaka (May Allah be merciful to you) !" The man said, "I have done sexual intercourse with my wife while fasting in Ramadan." The Prophet said, "Manumit a slave." The man said, " I cannot afford that. " The Prophet said; "Then fast for two successive months." The man said, " I have no power to do so." The Prophet said, "Then feed sixty poor persons." The man said, "I have nothing (to feed sixty persons). Later a basket full of dates were brought to the Prophet and he said (to the man), "Take it and give it in charity." The man said, "O Allah's Apostle! Shall I give it to people other than my family? By Him in Whose Hand my life is, there is nobody poorer than me in the whole city of Medina." The Prophet smiled till his premolar teeth became visible, and said, "Take it." Az-Zuhri said (that the Prophet said). "Wailaka."

Ka`b bin 'Ujra said that Allah's Apostle said to him (Ka`b), "Perhaps your lice have troubled you?" Ka`b replied, "Yes! O Allah's Apostle." Allah's Apostle said, "Have your head shaved and then either fast three days or feed six poor persons or slaughter one sheep as a sacrifice."

The Prophet was the most generous amongst the people, and he used to be more so in the month of Ramadan when Gabriel visited him, and Gabriel used to meet him on every night of Ramadan till the end of the month. The Prophet used to recite the Holy Qur'an to Gabriel, and when Gabriel met him, he used to be more generous than a fast wind (which causes rain and welfare).

I asked or someone asked the Prophet (saws) about perpetual fasting. He replied: You have a duty to your family. Fast during Ramadan and the following month, and every Wednesday and Thursday. You will then have observed a perpetual fast.

While we were with Allah's Apostle who was distributing (i.e. some property), there came Dhu-l- Khuwaisira, a man from the tribe of Bani Tamim and said, "O Allah's Apostle! Do Justice." The Prophet said, "Woe to you! Who could do justice if I did not? I would be a desperate loser if I did not do justice." `Umar said, "O Allah's Apostle! Allow me to chop his head off." The Prophet said, "Leave him, for he has companions who pray and fast in such a way that you will consider your fasting negligible in comparison to theirs. They recite Qur'an but it does not go beyond their throats (i.e. they do not act on it) and they will desert Islam as an arrow goes through a victim's body, so that the hunter, on looking at the arrow's blade, would see nothing on it; he would look at its Risaf and see nothing: he would look at its Na,di and see nothing, and he would look at its Qudhadh ( 1 ) and see nothing (neither meat nor blood), for the arrow has been too fast even for the blood and excretions to smear. The sign by which they will be recognized is that among them there will be a black man, one of whose arms will resemble a woman's breast or a lump of meat moving loosely. Those people will appear when there will be differences amongst the people." I testify that I heard this narration from Allah's Apostle and I testify that `Ali bin Abi Talib fought with such people, and I was in his company. He ordered that the man (described by the Prophet ) should be looked for. The man was brought and I looked at him and noticed that he looked exactly as the Prophet had described him.

A man came to the Prophet and said that he had been burnt (ruined). The Prophet asked him what was the matter. He replied, "I had sexual intercourse with my wife in Ramadan (while I was fasting)." Then a basket full of dates was brought to the Prophet and he asked, "Where is the burnt (ruined) man?" He replied, "I am present." The Prophet told him to give that basket in charity (as expiation).

The Prophet came to me during the period of Al-Hudaibiya, while I was lighting fire underneath a cooking pot and lice were falling down my head. He said, "Do your lice hurt your?" I said, "Yes." He said, "Shave your head and fast for three days or feed six poor persons or slaughter a sheep as a sacrifice:"

The Prophet had a she-camel called Al-`Adba' and it was too fast to surpass in speed. There came a bedouin riding a camel of his, and that camel outstripped it (i.e. Al-Aqba'). That result was hard on the Muslims who said sorrowfully, "Al- Adba has been outstripped." Allah's Apostle said, "It is due from Allah that nothing would be raised high in this world except that He lowers or puts it down."

The Prophet (saws) as saying: If anyone dies when some fast is due from him (i.e. which he could not keep) his heir must fast on his behalf.

Abu Dawud said: This applies to the fast which a man vows ; and this is the opinion of Ahmad b. Hanbal.

The Prophet (saws) said: No sadaqah is due on a horse or a slave except that given at the breaking of the fast (at the end of Ramadan).

The Messenger of Allah (saws) used to kiss me when he was fasting and when I was fasting.

We were with the Prophet in Ghazwa, and when we returned and approached Medina, I wanted to hurry while riding a slow camel. A rider overtook me and pricked my camel with a spear which he had, whereupon my camel started running as fast as any other fast camel you may see. I looked back, and behold, the rider was Allah's Apostle . I said, "O Allah's Apostle! I am newly married " He asked, "Have you got married?" I replied, "Yes." He said, "A virgin or a matron?" I replied, "(Not a virgin) but a matron" He said, "Why didn't you marry a young girl so that you could play with her and she with you?" When we reached (near Medina) and were going to enter it, the Prophet said, "Wait till you enter your home early in the night so that the lady whose hair is unkempt may comb her hair and that the lady whose husband has been away may shave her pubic hair."

The Messenger of Allah (saws) prescribed the sadaqah (alms) relating to the breaking of the fast as a purification of the fasting from empty and obscene talk and as food for the poor. If anyone pays it before the prayer (of 'Id), it will be accepted as zakat. If anyone pays it after the prayer, that will be a sadaqah like other sadaqahs (alms).