Hazrat Abdullah bin Amr (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: When any one of you is frightened in his sleep at night, he should recite these words: In the name of Allah: I seek refuge in the perfect words of Allah, from His wrath and His severe punishment, and from the evil of His servants, and from the evil of the devils, and from their presence.