وعن زيد بن ثابت رضي الله عنه
قال: تسحرنا مع رسول الله صلى الله عليه وسلم ثم قمنا إلى الصلاة قيل كم كان بينهما؟ قال: خمسون آية
We took Suhur (predawn meal) with the Messenger of Allah (sallallahu alayhi wa sallam) and then we stood up for (Fajr) Salat (prayer). It was asked: “How long was the gap between the two?” He replied: “The time required for the recitation of fifty Ayat.”.
Riyad as-Salihin 1230, Book 9, The Book of Virtues, Hadith 240. 1 min read