ʿAli ؓ came out to us and said: The Prophet ﷺ has enjoined Witr, and this is the time to pray Witr. O Ibnun-Nabbah, give the call to prayer.
إِنَّ النَّبِيَّ ﷺ أَمَرَ بِالْوَتْرِ ثَبَتَ وِتْرُهُ هَذِهِ السَّاعَةَ يَا ابْنَ النَّبَّاحِ أَذِّنْ أَوْ ثَوِّبْ