‏الصلاة : Hadeeth No:1611 It is reported on the authority of 'A'isha that the prayer of Allaah's Messenger (sallAllaahu alayhi wa sallam) in the night consisted of ten rak'ahs. He observed a Witr and two rak'ahs (of Sunan) of the dawn prayer, and thus the total comes to thirteen rak'ahs....

‏الصلاة : Hadeeth No:1160 This hadith has been narrated by al-Zubri with the same chain of transmitters....