Hadith 193
Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates: The Messenger of Allah (peace and blessings be upon him) said: "When you perform the morning prayer, that prayer will wash away that burning (of sins), then you will burn again and the Zuhr prayer will wash it away, then you will burn again and the Asr prayer will wash it away, then you will burn again and the Maghrib prayer will wash it away, then you will burn again and the Isha prayer will wash it away, then you will go to sleep, and then no sin will be written against you until you wake up."