"In the first rak'ah of witr, the Messenger of Allah ﷺ used to recite: "GLorify the Name of your Lord, the Most High;" in the second; "Say: O you disbelievers!" and in the third; "Say: He is Allah, (the) One."
كَانَ رَسُولُ اللَّهِ ﷺ يَقْرَأُ فِي الرَّكْعَةِ الأُولَى مِنَ الْوَتْرِ بِ { سَبِّحِ اسْمَ رَبِّكَ الأَعْلَى } وَفِي الثَّانِيَةِ بِ { قُلْ يَا أَيُّهَا الْكَافِرُونَ } وَفِي الثَّالِثَةِ بِ { قُلْ هُوَ اللَّهُ أَحَدٌ }