وَلِكُلٍّ دَرَجاتٌ مِمّا عَمِلوا ۖ وَلِيُوَفِّيَهُم أَعمالَهُم وَهُم لا يُظلَمونَ

And for all there are degrees [of reward and punishment] for what they have done, and [it is] so that He may fully compensate them for their deeds, and they will not be wronged.