It was narrated that a man from [the tribe of] Banu Asad said:
`Ali (رضي الله عنه) came out to us when the mu`adhdhin gave the call to Fajr prayer and said: The Messenger of Allah (ﷺ) has enjoined us to pray Witr and this is the time for it. Then he said: Give the iqamah for prayer, O Ibnun-Nawwahah.