"The Messenger of Allah commanded me to pray two Rakahs of Duha, and not to sleep until I had prayed witr, and to fast three days each month."
أَمَرَنِي رَسُولُ اللَّهِ ﷺ بِرَكْعَتَىِ الضُّحَى وَأَنْ لاَ أَنَامَ إِلاَّ عَلَى وِتْرٍ وَصِيَامِ ثَلاَثَةِ أَيَّامٍ مِنَ الشَّهْرِ