Abu Sa'id al-Khudri reported God’s messenger as saying, “Three things do not break the fast of one who is fasting: cupping, vomiting, and a nocturnal emission.” Tirmidhi transmitted it saying this is a tradition which is not regarded, its transmitter ‘Abd ar-Rahman b. Zaid being declared a weak traditionist.

Thabit al-Bunani said that when Anas b. Malik was asked whether they disapproved of cupping for one who was fasting in the time of God’s messenger he replied, “No, except if it had a weakening effect.” Bukhari transmitted it.

Bukhari said without a complete isnad that Ibn ‘Umar used to have himself cupped whan he was fasting. Then he abandoned it and had himself cupped at night.

‘Ata’ said, “If one rinses his mouth and ejects the water in it, swallowing his saliva and anything that remains in it does him no harm; but one should not chew gum, for although I do not say that he breaks his fast he swallows the saliva produced by the gum, he is nevertheless prohibited from doing it.” Bukhari transmitted it in a chapter heading.

Abu Sa'id al-Khudri said that when they went out on an expedition with God’s messenger on the sixteenth of Ramadan some fasted and some broke their fast, but neither party found fault with the other. Muslim transmitted it.

Anas b. Malik al-Ka‘bi reported God’s messenger as saying, “God has remitted half the prayer to the traveller, and fasting to the traveller, the woman who is suckling an infant and the woman who is pregnant.” Abu Dawud, Tirmidhi, Nasa’i and Ibn Majah transmitted it.

Salama b. al-Muhabbiq reported God’s messenger as saying, “If anyone has a riding-beast which carries him to where he can get sufficient food he should observe the fast of Ramadan wherever he is when it comes.” Abu Dawud transmitted it.

Jabir said that God’s messenger went off to Mecca in Ramadan in the year of the Conquest, and he and the people fasted till he came to Kura' al-Ghamim.* He then called for a cup of water which he raised till the people looked at it, and then he drank. He was told afterwards that some of the people had continued to fast, and said, “Those are the disobedient ones; those are the disobedient ones.” *A wadi two stages from Mecca on the way to Medina. Muslim transmitted it.

‘Abd ar-Rahman b. ‘Auf reported God’s messenger as saying, “One who fasts in Ramadan while travelling is like one who breaks his fast when not travelling.” Ibn Majah transmitted it.

Hamza b. ‘Amr al-Aslami told God’s messenger that he found himself strong enough to fast while travelling and asked whether it would be wrong for him to do so. He was told that licence had been given by God who is great and glorious, so that if anyone acted upon this he did well, but if anyone wished to fast he would not be guilty of sin. Muslim transmitted it.

Abu Huraira reported God’s messenger as saying, “It is not allowable for a woman to fast when her husband is present without his permission,* and she may not allow anyone to enter his house without his permission.” *This refers not to Ramadan, but to a supererogatory fast. Muslim transmitted it.

Mu'adha al-‘Adawiya said that when she asked ‘A'isha why one who has been menstruating must make up for her fast but not for her prayer, she replied, “That happened to us, and we were ordered to make up for the fast, but were not ordered to make up for the prayer.” Muslim transmitted it.

Nafi‘, on Ibn ‘Umar’s authority, reported the Prophet (ﷺ) as saying, “If anyone dies when fasting in the month of Ramadan has been unfulfilled by him, a poor man should be fed on his behalf in place of every day.” Tirmidhi transmitted it, saying that correctly this goes no farther back than Ibn ‘Umar.

Malik said he heard that Ibn ‘Umar used to be asked whether one might fast or pray on behalf of another, and reply, “One may neither fast nor pray on behalf of another.” He transmitted it in al-Muwatta’.

‘Abdallah b. Shaqiq said that when he asked ‘A'isha whether the Prophet (ﷺ) used to fast a whole month she replied, "I never knew him to fast a whole month except Ramadan, nor to refrain from fasting some part of every month till he died." Muslim transmitted it.

Abu Huraira reported God’s messenger as saying, “The most excellent fast after Ramadan is in God’s month al-Muharram, and the most excellent prayer after what is prescribed is prayer during the night." Muslim transmitted it.

He said that when God’s messenger fasted on the day of ‘Ashura’ and commanded that it should be observed as a fast, he was told it was a day held in honour by Jews and Christians, and said, “If I am spared till next year I shall fast on the ninth.” Muslim transmitted it.

‘A'isha said she never saw God’s messenger fasting during the first ten days of Dhul Hijja. Muslim transmitted it.

Abu Qatada said that when a man came to the Prophet (ﷺ) and asked him how he fasted, he was angry at what he said, and when 'Umar observed his anger he said, “We are satisfied with God as Lord, with Islam as religion and with Muhammad as Prophet. We seek refuge in God from the anger of God and His messenger.” ‘Umar kept on repeating these words till his anger calmed down, then asked, “Messenger of God, what is the position of one who observes a perpetual fast?” He replied, “May he not fast or break his fast!” or he said, “He has neither fasted nor broken his fast.” He asked, “What is the position of one who fasts two days out of every three?” and received the reply, “Is anyone able to do that?” He asked what was the position of one who fasted every second day and was told that was the fast David observed. He asked what was the position of one who fasted one day out of every three, and God’s messenger replied, “I wish I were given power to observe that.” Thereafter he said, “The observance of three days’ fast every month and of Ramadan every year is a perpetual fast. I seek from God that fasting on the day of ‘Arafa may atone for the sins of the preceding and the coming year, and I seek from God that fasting on the day of ‘Ashura’ may atone for the sins of the preceding year.” Muslim transmitted it.

He said that when God’s messenger was asked about fasting on Monday he said, “On it I was born and on it the revelation was first sent down to me.”* *The meaning seems to be that as this day is so distinguished, one could not choose a better one. Muslim transmitted it.