Musannaf Ibn Abi Shaybah

Hazrat Muhammad bin Yahya bin Haban narrates that Hazrat Waleed bin Mugheerah complained to the Messenger of Allah, peace and blessings be upon him, about thoughts that came to his heart. The Prophet, peace and blessings be upon him, said to him: When you come to your bed, recite these words: I seek refuge in the perfect words of Allah, from His anger and His punishment, and from the evil of His servants, and from the whisperings of Satan that they should come near me. By the One in Whose hand is my soul, nothing will harm you until you reach the morning.