(22) باب ذِكْرِ اخْتِلاَفِ هِشَامٍ وَسَعِيدٍ عَلَى قَتَادَةَ فِيهِ
It was narrated that Anas said:
"The Messenger of Allah and Zaid bin Thabit had Sahur, then they went and started to pray Subh." We said to Anas: "How long was there between their finishing and their starting to pray?" He said: "As long as it takes a man to recite fifty Verses."
Reference: Sunan an-Nasa'i 2157
In-book reference: Book 22, Hadith 68
English translation: Vol. 3, Book 22, Hadith 2159