Sahih al-Bukhari Hadith 231 – Volume 2, Book 21

English

Volume 2, Book 21, Number 231:
Narrated Abdullah bin 'Amr bin Al-'As:
Allah's Apostle told me, "The most beloved prayer to Allah is that of David and the most beloved
fasts to Allah are those of David. He used to sleep for half of the night and then pray for one third of
the night and again sleep for its sixth part and used to fast on alternate days."