The Prophet ﷺ used to offer thirteen rakʿat of the night prayer and that included the witr and two rakʿat (Sunna) of the Fajr prayer. (Using translation from Bukhārī 1140)
كَانَ رَسُولُ اللهِ ﷺ «يُصَلِّي مِنَ اللَّيْلِ ثَلَاثَ عَشْرَةَ رَكْعَةً ثَمَانِيَ رَكَعَاتٍ وَيُوتِرُ بِثَلَاثٍ وَيَرْكَعُ رَكْعَتَيِ الْفَجْرِ»