Surah Al-Kahf (The Cave), Verse 57

وَمَنْ اَظْلَمُ مِمَّنْ ذُكِّرَ بِاٰیٰتِ رَبِّهٖ فَاَعْرَضَ عَنْهَا وَنَسِیَ مَا قَدَّمَتْ یَدٰهُ اِنَّا جَعَلْنَا عَلٰی قُلُوْبِهِمْ اَكِنَّةً اَنْ یَّفْقَهُوْهُ وَفِیْۤ اٰذَانِهِمْ وَقْرًا وَاِنْ تَدْعُهُمْ اِلَی الْهُدٰی فَلَنْ یَّهْتَدُوْۤا اِذًا اَبَدًا ۟

Wa man azlamu mimman zukkira bi ayaati Rabbihee fa-a'rada 'anhaa wa nasiya maa qaddamat yadaah; innaa ja'alnaa 'alaa quloobihim akinnatan any yafqahoohu wa feee aazaanihim waqraa; wa in tad'uhum ilal hudaa falany yahtadooo izan abadaa

“And who doth more wrong than one who is reminded of the Signs of his Lord, but turns away from them, forgetting the (deeds) which his hands have sent forth? Verily We have set veils over their hearts lest they should understand this, and over their ears, deafness, if thou callest them to guidance, even then will they never accept guidance.”

Quran 18:57 (Yusuf Ali Translation)