Ahmad bin Hanbal أحمد بن حنبل · Fasting (Kitab Al-Siyam)

The Prophet (ﷺ) said: The end of Ramadan is on the day when you end it, and the 'Id (festival) of sacrifice is on the day when you sacrifice. The whole of Arafah is the place of staying, and the whole of Mina is the place of sacrifice, and all the roads of Mecca are the place of sacrifice, and the whole of Muzdalifah is the place of staying.

The Messenger of Allah (ﷺ) as saying: Do not fast one day or two days just before Ramadan, except in the case of a man who has been in the habit of observing the particular fast, for he may fast on that day.

The Prophet (ﷺ) said: When any of you hears the summons to prayer while he has a vessel in his hand, he should not lay it down till he fulfils his need.

The Prophet (ﷺ) said: When one of you is fasting, he should break his fast with dates; but if he cannot get any, then (he should break his fast) with water, for water is purifying.

The Prophet (ﷺ) said: Snuff up water freely unless you are fasting.

The Prophet (ﷺ) said: A man who cupped and a man who has himself cupped broke their fast. The narrator Shayban said in his version: AbuQilabah told me that AbuAsma' ar-Rahbi told him that Thawban, the client of the Messenger of Allah (ﷺ), told him that he heard the Prophet (ﷺ) say this.

The Messenger of Allah (ﷺ) came to a man at al-Baqi' while he was cupping on the 18th of Ramadan ; he (the Prophet) was holding my hand. Thereupon he said: A man who cups and a man who gets himself cupped break their fast. Abu Dawud said: The narrator Khalid al-Hadhdha' transmitted a similar tradition from Abu Qilabah through a different chain of narrators mentioned by the narrator Ayyub.

The Messenger of Allah (ﷺ) had himself cupped when he was fasting and wearing ihram (pilgrim garb).

The Prophet (ﷺ) said: If anyone breaks his fast one day in Ramadan without a concession granted to him by Allah, a perpetual fast will not atone for it.

I asked Sa'id b. Jubair about fasting during Rajab. He said: Ibn 'Abbas told me that the Messenger of Allah (ﷺ) used to fast to such an extent that we thought that he would never break his fast; and he would go without fasting to such an extent that we thought he would never fast.

AbdurRahman reported on the authority of his uncle that the people of the tribe Aslam came to the Prophet (ﷺ). He said (to them): Did you fast on this day? They replied: No. He said: Complete the rest of your day, and make atonement for it.