Al-Kahf · verse 57 of 110
18:57
And who doth greater wrong than he who hath been reminded of the revelations of his Lord, yet turneth away from them and forgetteth what his hands send forward (to the Judgment)? Lo! on their hearts We have placed coverings so that they understand not, and in their ears a deafness. And though thou call them to the guidance, in that case they can never be led aright.
18:57 · Al-Kahf · juz 15 · page 300 · tafsir at quran.com