When the Prophet arrived at Medina, he noticed that some people among the Jews used to respect Ashura' (i.e. 10th of Muharram) and fast on it. The Prophet then said, "We have more right to observe fast on this day." and ordered that fasting should be observed on it.

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.

Sabra b. Ma'bad reported that Allah's Apostle (may peace be upon him) permitted his Companions to contract temporary marriage with women in the Year of Victory. So I and a friend of mine from Banu Sulaim went out, until we found a young woman of Banu Amir who was like a young she-camel having a long neck. We proposed to her for contracting temporary marriage with us, and presented to her our cloaks (as dower). She began to look and found me more handsome than my friend, but found the cloak of my friend more beautiful than my cloak. She thought in her mind for a while, but then preferred me to my friend. So I remained with her for three (nights), and then Allah's Messenger (may peace be upon him) commanded us to part with them (such women).

Another chain reports a similar hadith.

[Muslim].

Sometimes Allah's Apostle would not fast (for so many days) that we thought that he would not fast that month and he sometimes used to fast (for so many days) that we thought he would not leave fasting throughout that month and (as regards his prayer and sleep at night), if you wanted to see him praying at night, you could see him praying and if you wanted to see him sleeping, you could see him sleeping.

Yahya said that he heard Malik say, "Someone who eats or drinks out of neglect or forgetfulness during a voluntary fast does not have to repeat his fast, but he should continue fasting for the rest of the day in which he eats or drinks while voluntarily fasting, and not stop fasting. Someone to whom something unexpected happens which causes him to break his fast while he is fasting voluntarily does not have to repeat his fast if he has broken it for a reason, and not simply because he decided to break his fast. Just as I do not think that someone has to repeat a voluntary prayer if he has had to stop it because of some discharge which he could prevent and which meant that he had to repeat his wudu."

Malik said, "Once a man has begun doing any of the right actions (al-amal as-saliha) such as the prayer, the fast and the hajj, or similar right actions of a voluntary nature, he should not stop until he has completed it according to what the sunna for that action is. If he says the takbir he should not stop until he has prayed two rakas. If he is fasting he should not break his fast until he has completed that day's fast. If he goes into ihram he should not return until he has completed his hajj, and if he begins doing tawaf he should not stop doing so until he has gone around the Kaba seven times. He should not stop doing any of these actions once he has started them until he has completed them, except if something happens such as illness or some other matter by which a man is excused. This is because Allah, the Blessed and Exalted, says in His Book, 'And eat and drink until the white thread becomes clear to you from the black thread of dawn, (and) then complete the fast until night-time,' (Sura 2 ayat 187), and so he must complete his fast as Allah has said. Allah, the Exalted, (also) says, 'And complete the hajj and the umra for Allah,' and so if a man were to go into ihram for a voluntary hajj having done his one obligatory hajj (on a previous occasion), he could not then stop doing his hajj having once begun it and leave ihram while in the middle of his hajj. Anyone that begins a voluntary act must complete it once he has begun doing it, just as an obligatory act must be completed . This is the best of what I have heard."

Allah's Apostle set out for Mecca in Ramadan and he fasted, and when he reached Al-Kadid, he broke his fast and the people (with him) broke their fast too. (Abu `Abdullah said, "Al-Kadid is a land covered with water between Usfan and Qudaid.")

'A'isha (Allah be pleased with her) reported that the Messenger of Allah (may peace be upon him) had ordered to observe fast (on 'Ashura) before the fasting in Ramadan was made obligatory. But when it became obligatory, then he who wished fasted on the day of Ashura, and he who wished did not observe it (on that day).

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.

Allah's Apostle said, "The people will remain on the right path as long as they hasten the breaking of the fast."

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.

Fasting for those who perform ,Hajj-at-Tamattu` (in lieu of the Hadi which they cannot afford) may be performed up to the day of `Arafat. And if one does not get a Hadi and has not fasted (before the `Id) then one should fast of the days of Mina. (11, 12 and 13th of Dhul Hajja).

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).

The Prophet (saws) came to visit Sa'd ibn Ubaydah, and he brought bread and olive oil, and he ate (them). Them). Then the Prophet (saws) said: May the fasting (men) break their fast with you, and the pious eat your food, and the angels pray for blessing on you.

It was the custom among the companions of Muhammad that if any of them was fasting and the food was presented (for breaking his fast), but he slept before eating, he would not eat that night and the following day till sunset. Qais bin Sirma-al-Ansari was fasting and came to his wife at the time of Iftar (breaking one's fast) and asked her whether she had anything to eat. She replied, "No, but I would go and bring some for you." He used to do hard work during the day, so he was overwhelmed by sleep and slept. When his wife came and saw him, she said, "Disappointment for you." When it was midday on the following day, he fainted and the Prophet was informed about the whole matter and the following verses were revealed: "You are permitted To go to your wives (for sexual relation) At the night of fasting." So, they were overjoyed by it. And then Allah also revealed: "And eat and drink Until the white thread Of dawn appears to you Distinct from the black thread (of the night)." (2.187)

A man came to the Prophet and said, "O Allah's Apostle! My mother died and she ought to have fasted one month (for her missed Ramadan). Shall I fast on her behalf?" The Prophet replied in the affirmative and said, "Allah's debts have more right to be paid." In another narration a woman is reported to have said, "My sister died..." Narrated Ibn `Abbas: A woman said to the Prophet "My mother died and she had vowed to fast but she didn't fast." In another narration Ibn `Abbas is reported to have said, "A woman said to the Prophet, "My mother died while she ought to have fasted for fifteen days."

Yahya related to me from Malik from Ibn Shihab that A'isha and Hafsa, the wives of the Prophet, may Allah bless him and grant him peace, began fasting voluntarily one morning and then food was given to them and they broke their fast with it. Then the Messenger of Allah, may Allah bless him and grant him peace, came in. A'isha said, "Hafsa asked, anticipating me in speech - she took after her father Umar - 'Messenger of Allah, A'isha and I began the morning fasting voluntarily and then food was given us and we broke the fast with it.' The Messenger of Allah, may Allah bless him and grant him peace, said, 'Fast another day in its place.' "

The Prophet (saws) said: The month consists of twenty-nine days, but do not fast till you sight it (the moon) and do not break your fast till you sight it. If the weather is cloudy, calculate it thirty days. When the twenty-ninth of Sha'ban came, Ibn Umar would send someone (who tried) to sight the moon for him. If it was sighted, then well and good; in case it was not sighted, and there was no cloud and dust before him (on the horizon), he would not keep fast the next day. If there appeared (on the horizon) before him cloud or dust, he would fast the following day. Ibn Umar would end his fasting alone with the people, and did not follow this calculation.

Mansur al-Kalbi said: Dihyah ibn Khalifah once went out from a village of Damascus at as much distance as it measures between Aqabah and al-Fustat during Ramadan; and that is three miles. He then broke his fast and the people broke their fast along with him. But some of them disliked to break their fast. When he came back to his village, he said: I swear by Allah, today I witnessed a thing of which I could not even think to see. The people detested the way of the Messenger of Allah (saws) and his Companions. He said this to those who fasted. At this moment he said: O Allah, make me die.

Allah's Apostle said to me, "The most beloved fasting to Allah was the fasting of (the Prophet) David who used to fast on alternate days. And the most beloved prayer to Allah was the prayer of David who used to sleep for (the first) half of the night and pray for 1/3 of it and (again) sleep for a sixth of it."

The Messenger of Allah (saws) said: He who does not determine to fast before dawn does not fast.

Yahya related to me from Malik that he had heard the people of knowledge telling people not to fast on the day in Shaban when there was doubt (about whether it was Shaban or Ramadan), if they intended by it the fast of Ramadan . They considered that whoever fasted on that day without having seen (the new moon) had to make up that day if it later became clear that it was part of Ramadan. They did not see any harm in voluntary fasting on that day.

Malik said, "This is what we do, and what I have seen the people of knowledge in our city doing."

That the Prophet asked him (Imran) or asked a man and `Imran was listening, "O Abu so-and-so! Have you fasted the last days of this month?" (The narrator thought that he said, "the month of Ramadan"). The man replied, "No, O Allah's Apostle!" The Prophet said to him, "When you finish your fasting (of Ramadan) fast two days (in Shawwal)." Through another series of narrators `Imran said, "The Prophet said, '(Have you fasted) the last days of Sha'ban?"