(Say) O Muhammad, to your Companions: (In the bounty of Allah) in the Qur'an with which Allah has honoured you (and in His mercy) the religion of Islam, which Allah has given you success to follow: (therein) i.e. in the Qur'an and Islam (let them rejoice. It is better) i.e. the Qur'an and Islam (than what they hoard) is better than what the Jews and idolaters amass of wealth.