فَبِأَيِّ ءَالَآءِ رَبِّكُمَا تُكَذِّبَانِ

Then which of the favors of your Lord will you deny?

هَلۡ جَزَآءُ ٱلۡإِحۡسَٰنِ إِلَّا ٱلۡإِحۡسَٰنُ

Is the reward for goodness anything but goodness?