(And those who believe) in Allah, Muhammad and the Qur'an (and do good works) acts of obedience, privately between them and their Lord: i.e. the Companions of Muhammad (pbuh) (and believe in that which is revealed unto Muhammad) and believe in that with which Allah sent down Gabriel to Muhammad (pbuh) (and it is) i.e. the Qur'an (the Truth from their Lord. He riddeth them of their ill deeds) i.e. their sins by means of jihad (and improveth their state) and improves their condition, intention and works in the life of he world; and it is said: He makes their matter manifest in Islam.