Mishkat al-Masabih #2036

‘Ā’isha said that every night when the Prophet went to his bed he joined his hands and breathed into them, reciting into them, ‘Say, He is God, One’; ‘Say, I seek refuge in the Lord of the dawn’; and ‘Say, I seek refuge in the Lord of men.’ Then he would wipe as much of his body as he could with his hands, beginning with his head, his face and the front of his body, doing that three times. (Bukhārī and Muslim)