Virtues of the Qur'an's Chapters and Verses, 89
Uqbah ibn Amir reported:
“The Messenger of Allah (ﷺ) commanded me to recite the Mu'awwidhaat after every prayer.” Reference: Sunan Abi Dawud 1523, Sunan an-Nasa'i 1336.
عَنْ عُقْبَةَ بْنِ عَامِرٍ، قَالَ أَمَرَنِي رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ أَقْرَأَ بِالْمُعَوِّذَاتِ دُبُرَ كُلِّ صَلاَةٍ .