Tafsir of Al-Ahqaf 46:19

ولكل درجات مما عملوا

And for all, there will be degrees according to that which they did, meaning that there will be degrees of punishment for each of them according to what they did.

وليوفيهم أعمالهم وهم ﻻ يظلمون

so that He might fully recompense them for their deeds, and they will not be wronged. which means Allah will not be unjust to them even in the amount of a speck of dust or less. Abdur-Rahman bin Zayd bin Aslam said: "The levels of the Fire descend, and those of Paradise ascend.'' Allah then says,