Musannaf Ibn Abi Shayba 33:446

Waki’ narrated to us, from Sufyan, from ‘Amr ibn Murrah, from Salim ibn Abi al-Ja’d, from Zayd ibn Suhan, that Salman, when he would wake up during the night, would say: "Glory be to the Lord of the prophets and the God of the messengers."