Ma'mar bin Rashid معمر بن راشد · The Book on Fasting

"I witnessed Umar bin Al-Khattab on the Day of Nahr beginning with the Salat before the Khutbah. Then he said: 'I heard the Messenger of Allah prohibit fasting on these two days. As for the Day of Fitr, then it is for you to take a break from your fasting, and a celebration for the Muslims. As for the Day of Adha, then eat from the flesh that you have sacrificed.'"

The Prophet said: "The cupper and the one cupped have broke the fast."

"The Prophet would perform I'tikaf during the last ten (days) of Ramadan until Allah took him."

The Messenger of Allah said: "Al-Fitr is the day that the people break the fast, and Al-Adha is the day that the people sacrifice."

"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…