question #2 Sahih al-Bukhari 6319, Book 80, Hadith 16 : How did the Prophet Muhammad (ﷺ) incorporate physical actions with recitation for protection before sleep?

Whenever Allah’s Messenger (ﷺ) went to bed, he used to blow on his hands while reciting the Mu’auwidhat (
i.e. Suratal-Falaq 113 and Surat-an-Nas 114) and then pass his hands over his body.