Khalid bin Ma'dan خالد بن معدان · The Book of Fasting

"I said to 'Aishah: 'Among us there are two men, one of whom hastens Iftar and delays Sahur, and the other delays Iftar and hastens Sahur.' She said; 'Which of them is the one who hastens Iftar and delays Sahur?' I said: "Abdullah bin Masud.' She said; 'This is what the Messenger of Allah used to do."'

"Masruq and I came to 'Aishah, and Masruq said to her: 'There are two men from among the Companions of the Messenger of Allah both of whom are good; one of them delays the prayer and Ifar, and the other hastens the prayer and Iftar.' 'Aishah said: 'Which of them is the one who hastens the prayer and Iftar?' Masruq said: 'That is what the Messenger of Allah used to do."'

"I do not know that the Messenger of Allah recited the whole Quran in one night, or prayed Qiyam until morning, or ever fasted an entire month except Ramadan." '

"The Messenger of Allah used to fast until we said: 'He will not break his fast.' And he used not to fast until we said: 'He will not fast.' And I never saw the Messenger of Allah fast more in any month than in Shaban."

"The Messenger of Allah used to fast (all of) Shaban except a little."

"The Messenger of Allah used to fast all of Shaban."

"I said: 'O Messenger of Allah, I do not see you fasting any month as much as Shaban.' He said: 'That is a month to which people do not pay much attention, between Rajab and Ramadan. It is a month in which the deeds are taken up to the Lord of the worlds, and I like that my deeds be taken up when I am fasting."'