Then He got up and performed the ablution, brushed his teeth and offered eleven Rakat. Then Bilal pronounced the Adhan whereupon the Prophet offered a two-Rak’at (Sunna) prayer and went out to lead the people in Fajr (morning compulsory congregational prayer.
Narrated By Ibn ‘Abbas : Once I stayed overnight at the house of (my aunt) Maimuna while the Prophet was with her, to see how was the night prayer of Allah s Apostle Allah’s Apostle talked to his wife for a while and then slept. When it was the last third of the night (or part of it), the Prophet got up and looked towards the sky and recited the Verse: ‘Verily! In the creation of the Heavens and the Earth… there are indeed signs for the men of understanding.’ (3.190)