Mu'adha al-‘Adawiya said she asked ‘A'isha whether God’s messenger used to fast three days every month, and she replied that he did. She asked which days in the month he fasted, and she replied that he did not care which days of the month he fasted. Muslim transmitted it.

Abu Ayyub al-Ansari told that God’s messenger said, “If anyone fasts during Ramadan, then follows it with six days in Shawwal, it will be like a perpetual fast.” Muslim transmitted it.

Nubaisha al-Hudhali reported God’s messenger as saying, “The days of at-tashriq* are days of eating, drinking, and remembrance of God.” *The three days after the sacrifice on the tenth of Dhul Hijja. The name is said to have been given because the flesh of the victims is cut into strips and put in the sun to dry; but other explanations are also given. Muslim transmitted it.

He reported God’s messenger as saying, “Do not choose Thursday night as a particular night for prayer, and do not choose Friday as a particular day for fasting, unless it occurs during a fast one of you is observing.” Muslim transmitted it.

‘A'isha said that God’s messenger used to fast on Mondays and Thursdays. Tirmidhi and Nasa’i transmitted it.

Abu Huraira reported God’s messenger as saying, “Men’s deeds are presented on Mondays and Thursdays, and I like mine to be presented when I am fasting.” Tirmidhi transmitted it.

Abu Dharr reported God’s messenger as saying, “When you fast three days in the month, Abu Dharr, fast on the thirteenth, fourteenth and fifteenth.” Tirmidhi and Nasa'i transmitted it.

‘Abdallah b. Mas'ud said that God’s messenger used to fast the first three days every month, and he would seldom break his fast on a Friday. Tirmidhi and Nasa’i transmitted it, and Abu Dawud transmitted up to “three days every month.”

‘A'isha said that God’s messenger used to fast on Saturday, Sunday, and Monday one month, and on Tuesday, Wednesday, and Thursday the next. Tirmidhi transmitted it.

Umm Salama said that God’s messenger used to command her to fast three days every month beginning with Monday or Thursday. Abu Dawud and Nasa’i transmitted it.

Muslim al-Qurashi said that he or someone else asked God's messenger about perpetual fasting, and 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." Abu Dawud and Tirmidhi transmitted it.

Abu Huraira said that God’s messenger prohibited fasting on the day of ‘Arafa at ‘Arafa. Abu Dawud transmitted it.

‘Abdallah b. Busr, on the authority of his sister as-Samma’, reported God’s messenger as saying, “Do not fast on Saturday except during what has been made obligatory for you; and if one of you can get nothing but a grape skin or a piece of wood from a tree, he should chew it.” Ahmad, Abu Dawud, Tirmidhi, Ibn Majah and Darimi transmitted it.

Abu Umama reported God’s messenger as saying, "If anyone fasts for a day while on jihad,* God will put between him and hell a ditch as wide as the distance between heaven and earth." *Mirqat gives this meaning, but says it may refer to the hajj, the 'umra, seeking knowledge, or desiring to please God. The Arabic is 'in God’s way.' Tirmidhi transmitted it.

‘Amir b. Mas'ud reported God’s messenger as saying, “Fasting in winter is booty gained without trouble.”* *Literally, 'the cold booty.' The idea is that in winter one does not suffer from hunger and thirst as in summer. Ahmad and Tirmidhi transmitted it, the latter saying this is a mursal tradition.

The tradition of Abu Huraira, “No days are dearer to God”, has been mentioned in the chapter on the sacrifices.* *Reference to the first ten days of the month of Dhul Hijjah.

Umm Salama said that God's messenger used to fast on Saturdays and Sundays more than on other days, and he used to say, “They are days of festival for the polytheists, and I like to act contrary to them.” Ahmad transmitted it.

Jabir b. Samura said, “God’s messenger used to command us to observe the day of ‘Ashura’ as a fast, urge us to observe it and pay attention to us when it came; but when Ramadan was made obligatory he neither commanded nor forbade us to observe it, nor did he pay attention to us when it came.” Muslim transmitted it.

Hafsa said there were four things the Prophet (ﷺ) never omitted: fasting on ‘Ashura’, the first ten days of Dhul Hijja* and three days every month, and praying two rak'as before dawn. *The Arabic has simply 'the ten', to be understood as translated above. Nasa’i transmitted it.

Abu Huraira reported God’s messenger as saying, “There is zakat applicable to everything, and the zakat of the body is fasting.” Ibn Majah transmitted it.