7.157 . Those who follow the messenger , the Prophet who can neither read nor write , whom they will find described in the Torah and the Gospel ( which are ) with them . He will enjoin on them that which is right and forbid them that which is wrong . He will make lawful for them all good things and prohibit for them only the foul ; and he will relieve them of their burden and the fetters that they used to wear . Then those who believe in him , and honor him and help him , and follow the light which is sent down with him : they are the successful .