Muhammad bin 'Abdur Rahman al-Tafawi محمد بن عبد الرحمن الطفاوي · Chapters on Supplication

Every night, when the Prophet (ﷺ) would go to his bed, he would join his hands, then blow in them, as he recited in them: “Say: He is Allah, the One.” And “Say: I seek refuge in the Lord of Al-Falaq” and “Say: I seek refuge in the Lord of mankind.” Then he would wipe as much as he was able to of his body with them, beginning with them first of his head and face, and the front of…