Musannaf Ibn Abi Shaybah 1277 — Those who said: sleep in a state

Sayyiduna Amr bin Abasah (may Allah be pleased with him) said: When a person lies down on his bed in a state of ablution and keeps remembering Allah until he falls asleep, and when he wakes up the first thing he says is: "O Allah, You are free of all imperfection; there is no god but You; forgive me," he comes out of his sins just as a snake comes out of its skin.