Sunan an-Nasa'i 1713

Sufyan narrated from Az-Zuhri, from 'Ata bin Yazid, from Abu Ayyub, who said:"Whoever wants to pray witr with seven (rak'ahs) let him do so, and whoever wants to pray witr with five (rak'ahs) let him do so, and whoever wants to pray witr with three rak'ahs, let him do so; and whoever wants to pray witr with one rak'ah, let him do so, and wants to do so gesturing, let him do so