Abdullah ibn Umar
Tahajjud Prayer does not entail a specific number of rak`ahs that must be performed, nor is there any maximum limit that may be performed. It would be fulfilled even if one prayed just one rak`ah of Witr after `Ishaa'; however, it is traditionally prayed with at least two rak'at which is known as shif'a followed by witr as this is what Muhammad did before fajr Abdullah ibn Umar narrated that Muhammad said: