question #3 Sahih al-Bukhari 994, Book 14, Hadith 5 : What was the Prophet’s routine before the Fajr prayer?

Allah’s Messenger (ﷺ) used to pray eleven rak`at at night and that was his night prayer and each of his
prostrations lasted for a period enough for one of you to recite fifty verses before Allah’s Messenger (ﷺ)
raised his head. He also used to pray two rak`at (Sunnah) before the (compulsory) Fajr prayer and then
lie down on his right side till the Mu’adh-dhin came to him for the prayer.