Surat Al-`Ankabūt - سورة العنكبوت

وَالَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ لَنُكَفِّرَنَّ عَنْهُمْ سَيِّئَاتِهِمْ وَلَنَجْزِيَنَّهُمْ أَحْسَنَ الَّذِي كَانُوا يَعْمَلُونَ

: Those who believe [in the Oneness of Allah (Monotheism) and in Messenger Muhammad SAW , and do not apostate because of the harm they receive from the polytheists], and do righteous good deeds, surely, We shall remit from them their evil deeds and shall reward them according to the best of that which they used to do.