“Zaid b. Thabit (Allah be pleased with him) said:
We took meal shortly before dawn along with the Messenger of Allah (ﷺ). We then stood up for prayer. I said: How much span of time was there between the two? He said (a span of reciting) fifty verses.”
[Saheeh Muslim no. 1097]
Shaikh Ibn ul-’Uthaymeen rahimahullah said: “Fifty verses is from ten minutes to fifteen minutes or less than that if a person reads with a paced recitation. This indicates that the Prophet sallahu alayhi wa salam used to greatly delay the Suhur”
[See: Sharh Riyadus-Saliheen (5/285)]
Translated by
Faisal Ibn Abdul Qaadir Ibn Hassan
Abu Sulaymaan