Prayer at Night (Tahajjud) 
Bukhari :: Book 2 :: Volume 21 :: Hadith 260
Narrated 'Aisha:
The Prophet was never more regular and particular in offering any Nawafil than the two Rakat (Sunna) of the Fajr prayer.
Prayer at Night (Tahajjud)
Bukhari :: Book 2 :: Volume 21 :: Hadith 260
Narrated 'Aisha:
The Prophet was never more regular and particular in offering any Nawafil than the two Rakat (Sunna) of the Fajr prayer.