Kharija b. Hudhafa told of God’s Messenger coming out to them and saying, “God has given you an extra prayer which is better for you than the high-bred camels,* the witr, which God has appointed for you between the evening prayer and the daybreak.”
* Literally “the red ones of the camels.” These were considered to be the best quality.
Abu Ayyub reported God’s Messenger as saying, “The witr is a duty for every Muslim, so if anyone wishes to observe it with five rak'as he may do so; if anyone wishes to observe it with three he may do so; and if anyone wishes to observe it with one he may do so.”