al-Laith bin Sa'd الليث بن سعد · The Book of Fasting

"Masruq and I came to 'Aishah and we said to her: 'O mother of the Believers, two men from among the Companions of Muhammad; one of them hastens the Iftar and hastens the prayer, and the other delays Iftar and delays the prayer; She said: 'Which one of them hastens Iftar and has hastens the prayer?' we said : 'Abdullah bin Masud.' She said: 'That is what the Messenger of Allah used to do."" And the other was Abu Musa.

"The Messenger of Allah used to fast all of Shaban, and he made sure to fast on Mondays and Thursdays." '

"The Messenger of Allah said: 'Fasting is a shield."

"I was with Ibn Masud when he was with "uthman, and 'Uthman said: 'Whoever among you has the means, let him get married, for it is more effective in lowering the gaze and guarding one's chastity. And whoever cannot, then fasting will be a shield for him." (Sahih) Abu 'Abdur-Rahman (An-Nasai) said: This (narrator) is Abu Mashar, his name is Ziyad bin Kulaib, and he is trustworthy. He was a companion of Ibrahim. Mansur, Mughirah, and Shubah reported from him.…

the Messenger of Allah passed by a man in the shade of a tree on whom water was being sprinkled. He said: "What is the matter with your companion?" They said: "O Messenger of Allah, he is fasting." He said: "It is not righteousness to fast when traveling. Take to the concession which Allah has granted you, accept it."

"The Messenger of Allah went out to Makkah, and he fasted until he came to 'Usfan. Then he called for a cup and drank." (One of the narrators) Shubah said: "(That was) in Ramadan. Ibn 'Abbas used to say: 'Whoever wants to fast, may fast, and whoever wants to break may break his fast."'

That the Messenger of Allah fasted during Ramadan and broke his fast when traveling.

"Do you have anything this morning that you can give me to eat?" we would say no, and he would say: "I am fasting." Then after that he came and she said: "I have been given a gift." He said: "What is it?" she said: "Hais." He said: "I started the day fasting," but then he ate.

"The Messenger of Allah commanded me to pray two Rakahs of Duah,nt to sleep until after praying Witr and to fast three days of each month. (Sahih).

"I asked the Messenger of Allah about fasting and he said: 'Fast one day of the month.' I said: 'Fast one day of the month.' I said: 'O Messenger of Allah, let me do more, let me do more.' He said: 'Let me do more, let mo do more; I am able for it.' Then the Messenger of Allah fell silent until I thought that he was going to refuse my request. Then he said: 'fast three days of each…