"My closest friend advised me to do three things: 'To pray witr at the beginning of the night, to pray two rak'ahs of Fajr and to fast three days of each month.'" (Using translation from Nasāʾī 1678)
أَوْصَانِي خَلِيلِي ﷺ بِثَلَاثٍ «الْوِتْرِ أَوَّلَ اللَّيْلِ وَرَكْعَتَيِ الضُّحَى وَصَوْمِ ثَلَاثَةِ أَيَّامٍ مِنْ كُلِّ شَهْرٍ»