Allah has promised those who believe and do righteous deeds among them forgiveness and a great reward.

     When those who disbelieved had put into their hearts chauvinism - the chauvinism of the time of ignorance. But Allah sent down His tranquility upon His Messenger and upon the believers and imposed upon them the word of righteousness, and they were more deserving of it and worthy of it. And ever is Allah, of all things, Knowing. Certainly has Allah showed to His Messenger the vision [i.e, dream] in truth. You will surely enter al- Masjid al Haram, if Allah wills, in safety, with your heads shaved and [hair] shortened, not fearing [anyone]. He knew what you did not know and has arranged before that a conquest near [at hand]. It is He who sent his Messenger with guidance and the religion of truth to manifest it over all religions. And sufficient is Allah as Witness. Muhammad is the Messenger of Allah; and those with him are forceful against the disbelievers, merciful among themselves. You see them bowing and prostrating [in prayer], seeking bounty from Allah and [His] pleasure. Their sign is in their faces from the effect of prostration [i.e, prayer]. That is their description in the Torah. And their description in the Gospel is as a plant which produces its offshoots and strengthens them so they grow firm and stand upon their stalks, delighting the sowers - so that He [i.e, Allah] may enrage by them the disbelievers. Allah has promised those who believe and do righteous deeds among them forgiveness and a great reward. 

THE QUR'AN, al-Fath 48:26-29