´It was narrated that Aishah said:` "The Messenger of Allah (ﷺ) used to pray eleven rak'ahs at night between finishing Isha' prayer and Fajr, apart from the two rak'ahs of Fajr, and he would prostrate for as long as it takes one of you to recite fifty verses.
Hadith Referenceسنن نسائي / كتاب قيام الليل وتطوع النهار / 1750
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه