"Ata' bin Yazid narrated to me that he heard Abu Ayyub Al-Ansari say: 'Witr is a duty, so whoever wants to pray witr with five rak'ahs let him do so, whoever wants to pray witr with three, let him do so; and whoever wants to pray witr with one, let him do so.'"
Sunan an-Nasa'i Book 20, Hadith 115
← Previous Hadith "Az-Zuhri narrated to me, he said: 'Ata bin Yazid, from Abu Ayyub: The Messenger of Allah (ﷺ) said: 'Witr is a duty, and whoever wants to pray witr with seven (rak'ahs), let him do so; whoever wants to pray witr with five, let him do so, whoever wants to pray witr with three, let him do so; and whoever wants to pray witr with one, let him do so.'"

Sunan an-Nasa'i Book 20, Hadith 114 Next Hadith → "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.'"

Sunan an-Nasa'i Book 20, Hadith 116