Abū Hurayrah (raḍiy Allāhu ʿanhu) narrated that the Messenger of Allah ﷺ said: “When one of you leaves his bed then returns to it, then he should dust it off with the edge of his garment three times, for indeed he does not know what came upon it after him. When he lies down, he should say: ‘In Your Name my Lord, I lie down, and in Your Name, I rise. If You take my soul away then have mercy upon it; and if You return my soul then protect it with what you protect Your righteous servants with.’ And when he wakes up, he should say [the above].” (Tirmidhī 3401)