Hanad bin al-Sari bin Mus'ab هناد بن السري بن مصعب · The Book of Fasting

"We had Sahur with the Messenger of Allah then we went to pray." I (one of the narrators) said: "It is claimed that Anas said: 'How long was there between them?' He said: 'As long as it takes a man to recite fifty verses."