Mukhtasar Muslim

It is narrated from Sayyiduna Abbas bin Abdul Muttalib, may Allah be pleased with him, that he heard the Messenger of Allah, peace and blessings be upon him, say: "He has tasted the sweetness of faith who is pleased with Allah as the Lord of the worlds (worthy of worship), with Islam as the religion, and with Muhammad, peace and blessings be upon him, as the Prophet."