'A'isha (Allah be pleased with her) reported. In the pre-Islamic days fast was observed on the day of Ashura, but with the advent of Islam (its position was ascertained as that of a voluntary fast). Then he who wished to fast fasted, and he who liked to abandon it abandoned it.

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."

On the days of the conquest of Mecca, when Mecca was captured, Fatimah came and sat on the left side of the Messenger of Allah (saws), and Umm Hani was on his right side. A slave-girl brought a vessel which contained some drink; she gave it to him and he drank of it. He then gave it to Umm Hani who drank of it. She said: Messenger of Allah, I have broken my fast; I was fasting. He said to her: Were you making atonement for something? She replied: No. He said: Then it does not harm you if it was voluntary (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."

Yahya related to me from Malik that he had heard that Said ibn al-Musayyab was asked whether a man who had vowed to fast a month could fast voluntarily, and Said said, "He should fulfil his vow before he does any voluntary fasting."

Malik said, "I have heard the same thing from Sulayman ibn Yasar."

Malik said, "If someone dies with an unfulfilled vow to free a slave or to fast or to give sadaqa or to give away a camel, and makes a bequest that his vow should be fulfilled from his estate, then the sadaqa or the gift of the camel are taken from one third of his estate. Preference is given to it over other bequests, except things of a similar nature, because by his vow it has become incumbent on him, and this is not the case with something he donates voluntarily. They (vows and voluntary donations) are settled from a limited one-third of his estate, and not from the whole of it, since if the dying man were free to dispose of all of his estate, he might delay settling what had become incumbent on him (i.e. his vows), so that when death came and the estate passed into the hands of his heirs, he would have bequeathed such things (i.e. his vows) that were not claimed by anyone (like debts). If that (i.e. to dispose freely of his property) were allowed him, he would delay these things (i.e. his vows) until when he was near death, he would designate them and they might take up all of his estate. He must not do that."

Salim b. 'Abdullah reported on the authority of his father that the Messenger of Allah (may peace be. upon him) used to observe Nafl (supererogatory) prayer on his ride no matter in what direction it turned its face, and he observed Witr too on it, but did not observe obligatory prayer on it.

Jabir b. Samura reported that the Apostle of Allah (may peace be upon him) observed (Nafl) prayer sitting before his death.

'A'isha reported that the Apostle of Allah (may peace be upon him) used to observe two (supererogatory) rak'ahs in between the call to prayer and the Iqama of the dawn prayer.

'A'isha reported that the Apostle (may peace be upon him) was not so much particular about observing supererogatory rak'ahs as in case of the two rak'ahs of the dawn prayer.

'A'isha reported that the Messenger of Allah (may peace be upon him) died (in this very state) that he observed most of his (Nafl) prayers in a sitting position.

Ibn 'Umar reported that the Messenger of Allah (may peace be upon him) used to say Nafl prayer on (the back of) his camel in whatever direction it took him.

Ibn Umar (Allah be pleased with them) reported that Allah's Messenger (may peace be upon him) came to the mosque at Quba' riding and on foot, and he observed two rak'ahs of (Nafl prayer) in it.

'Abdullah b. 'Amir b. Rabi'a has reported on the authority of his father that he had seen the Messenger of Allah (may peace be upon him) observing Nafl player at night on a journey on the back of his ride in whichever direction it turned its face.