Musannaf Ibn Abi Shayba 21:499

Narrated to us Abd al-Rahim ibn Sulayman, from Yahya ibn Sa’id, from Muhammad ibn Yahya ibn Habban, that al-Walid ibn al-Walid ibn al-Mughirah al-Makhzumi complained to the Messenger of Allah (may Allah bless him and grant him peace) about a whisper of the soul that he experienced. He said to him: "When you come to your bed, say: 'I seek refuge in the perfect words of Allah from His anger, His punishment, the evil of His servants, and from the promptings of the devils and that they should attend me.' For by the One in whose hand is my soul, nothing will harm you until you reach the morning."