ʿAli bin Abi Talib ؓ came out to us and they asked him about Witr. He said: The Messenger of Allah ﷺ commanded us to pray witr at this time. O Ibn An-Nabbah, give the adhan - or, say the iqamah.
أَمَرَنَا رَسُولُ اللهِ ﷺ أَنْ نُوتِرَ هَذِهِ السَّاعَةَ ثَوِّبْ يَا ابْنَ النَّبَّاحِ أَوْ أَذِّنْ أَوْ أَقِمْ