An old woman from Banu Numayr heard from the Noble Prophet (peace and blessings be upon him) while he (peace and blessings be upon him) was leading the people in prayer and his face was towards the House of Allah, and she remembered this supplication from him (peace and blessings be upon him): "Rabbighfir li khatayaya wa jahli." (O my Lord! Forgive my mistakes and my acts of ignorance.)