Humran reports that once Sayyiduna Uthman (may Allah be pleased with him) was sitting on a bench. He called for water and performed ablution thoroughly and well. He then said: I saw the Prophet (peace and blessings be upon him) perform ablution in this very place in the best manner, and the Messenger of Allah (peace and blessings be upon him) said: Whoever performs ablution like this of mine and then comes to the mosque and offers two units of prayer, Allah Almighty will forgive all his previous sins. The Prophet (peace and blessings be upon him) also said: "Do not be deceived."