Hazrat Humran bin Aban, the freed slave of Usman, narrates that I used to prepare water for Hazrat Usman for bathing. He would bathe with it every day, even if he used only a little water. One day he said that once the Messenger of Allah (peace and blessings be upon him) told us after this prayer (Asr), "I do not know whether I should tell you something or remain silent?" We said, "O Messenger of Allah! If there is good in it, then tell us; if it is otherwise, then Allah and His Messenger know best." Then the Holy Prophet (peace and blessings be upon him) said, "Whenever a person performs ablution well and then offers prayer, all his sins committed up to the previous prayer are forgiven."