Sahih al-Bukhari
1139
Prayer at Night (Tahajjud) | B:19 - H:20
Narrated Masruq:
I asked Aisha about the night prayer of Allah's Messenger (ﷺ) and she said, "It was seven, nine or eleven rak`at besides the two rak`at of the Fajr prayer (i.e. Sunna). "
Chapter: How was the Salat of the Prophet (pbuh) and how many Rak'a he used to offer at night?
Sahih