Az Zumar Ayah 35
لِيُكَفِّرَ ٱللَّهُ عَنْهُمْ أَسْوَأَ ٱلَّذِى عَمِلُواْ وَيَجْزِيَهُمْ أَجْرَهُم بِأَحْسَنِ ٱلَّذِى كَانُواْ يَعْمَلُونَ ٣٥
As such, Allah will absolve them of ?even? the worst of what they did and reward them according to the best of what they used to do.