Sahih Bukhari
Witr Prayer
Volume: 002 / Book Number: 016 / Hadith Number: 115
Narrated Muhammad bin Sirin:
Anas was asked, "Did the Prophet recite Qunut in the Fajr prayer?" Anas replied in the affirmative. He was further asked, "Did he recite Qunut before bowing?" Anas replied, "He recited Qunut after bowing for some time (for one month)."