ʿAli ؓ came out to us when the muʿadhdhin 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.
خَرَجَ عَلِيٌّ حِينَ ثَوَّبَ الْمُثَوِّبُ لِصَلاةِ الصُّبْحِ فَقَالَ إِنَّ رَسُولَ اللهِ ﷺأَمَرَنَا نُوِتْرُ فَثَبَتَ لَهُ هَذِهِ السَّاعَةَ ثُمَّ قَالَ أَقِمْ يَا ابْنَ النَّوَّاحَةِ