It is narrated from Sayyiduna Uthman (may Allah be pleased with him) that I heard the Messenger of Allah (peace and blessings be upon him) saying: Tell me, if there were a river flowing in the courtyard of your house and you bathed in it five times a day, would any dirt remain on your body? The people said: Absolutely not! He said: "The five prayers remove sins just as water removes dirt."