Tafseer Ibn Kathir of AL KAHFI [88]

وَأَمَّا مَنْ آمَنَ وَعَمِلَ صَالِحًا فَلَهُ جَزَاء الْحُسْنَى وَسَنَقُولُ لَهُ مِنْ أَمْرِنَا يُسْرًا

But as for one who believes and does righteousness, he will have a reward of Paradise, and we will speak to him from our command with ease."