Volume 1, Book 10, Number 549:
Narrated Anas:
Zaid bin Thabit said, “We took the “Suhur” (the meal taken before dawn while fasting is observed)
with the Prophet and then stood up for the (morning) prayer.” I asked him how long the interval
between the two (Suhur and prayer) was. He replied, ‘The interval between the two was just suffi –
cient to recite fifty to Sixth ‘Ayat.”