“Witr is Haqq.* Whoever wishes let him pray Witr with five (Rak’ah), and whoever wishes let him pray Witr with three (Rak’ah), and whoever wishes let him pray Witr with one (Rak’ah).”
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ الْوِتْرُ حَقٌّ فَمَنْ شَاءَ فَلْيُوتِرْ بِخَمْسٍ وَمَنْ شَاءَ فَلْيُوتِرْ بِثَلاَثٍ وَمَنْ شَاءَ فَلْيُوتِرْ بِوَاحِدَةٍ