سورة Al-Hujurat ( The Dwellings ) - الآية 14

The ignorant said, “We have accepted faith”; say, (O dear Prophet Mohammed – peace and blessings be upon him), “You have surely not accepted faith, but you should say ‘We have submitted’, for faith has not yet entered your hearts; and if you obey* Allah and His Noble Messenger, He will not reduce the reward of any of your deeds; indeed Allah is Oft Forgiving, Most Merciful.” (* By accepting faith and then obeying the commands).