Abu Salama bin 'Abdur Rahman أبو سلمة بن عبد الرحمن بن عوف · The Book on Fasting

the Messenger of Allah said: "Whoever fasts Ramadan and stands (in the night prayer) for it out of faith and seeking a reward (from Allah), he will be forgiven what preceded of his sins. Whoever stands (in the night prayer) on the Night of Al-Qadr out of faith and seeking a reward (from Allah), he will be forgiven what preceded of his sins."

the Prophet said: "Do not precede the month with a day nor with two days, unless that fast falls on a day that one of you would have (normally) fasted. Fast with its sighting and break fast with its sighting, and if it is cloudy, then count for thirty days, and then break (the fast)."

the Messenger of Allah said: "Do no precede the month of Ramadan by fasting a day or two before it, unless it is the case of a man who normally performs some fast, then let him fast it."

the Messenger of Allah said: "Count the (the appearances of) the crescent of Sha'ban for Ramadan."

the Messenger of Allah said: "Allah, Mighty and Sublime is He, said: 'Those of My worshippers who are most beloved to me are the quickest to break their fast.'"

"I did not see the Prophet fasting two consecutive months except for Sha'ban and Ramadan."

"The Messenger of Allah would encourage the night prayer in Ramadan without firmly ordering it, and he would say: "Whoever stands (in the night prayer) for Ramadan with faith and seeking the reward (from Allah), then he will be forgiven what has preceded of his sins.' So the Messenger of Allah died and the matter was like that. Then the matter was the same during the Khilafah of Abu Bakr and it continued during a portion of the Khilafah of…