Allah’s Messenger (ﷺ) slept on his bed, he put together his hands (as in the du’aa) and blew on it and recited (the surahs of) AI Ikhlaas (Qul huwauahu ahad), AI-Falaq (Qul a’udhu birabbil falaq), and An-Naas (Qui a’udhu birabbin nas) and wiped those parts of the body that he could (wherever the hand could reach). He began with the head, then the face and then the front part of his body. This was done thrice”. Shama’il Muhammadiyah Book 38, Hadith 244. And every verse of Ayatul kursi, eighty angels descend. The Ayatul kursi has been revealed from beneath the Divine Throne, then it was integrated into Surah Al-Baqarah.