عن أنس، رضي الله عنه قال‏:‏ قال رسول الله صلى الله عليه وسلم‏:‏ ‏"‏تسحروا فإن في السحور بركة‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏

Zaid bin Thabit (May Allah be pleased with him) reported

We took Suhur (predawn meal) with the Messenger of Allah (ﷺ) 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."[Al-Bukhari and Muslim].