(19) باب قَدْرِ كَمْ بَيْنَ السَّحُورِ وَصَلاَةِ الْفَجْرِ
Narrated Anas:
Zaid bin Thabit said, "We took the Suhur with the Prophet (ﷺ) . Then he stood for the prayer." I asked, "What was the interval between the Suhur and the Adhan?" He replied, "The interval was sufficient to recite fifty verses of the Qur'an."
Reference: Sahih al-Bukhari 1921
In-book reference: Book 30, Hadith 30
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 31, Hadith 144