﴿خَتَمَ اللَّهُ عَلَىٰ قُلُوبِهِمْ وَعَلَىٰ سَمْعِهِمْ ۖ وَعَلَىٰ أَبْصَارِهِمْ غِشَاوَةٌ ۖ وَلَهُمْ عَذَابٌ عَظِيمٌ﴾
7. Allâh has set a seal on their hearts and on their hearing, (i.e. they are closed from accepting Allâh’s Guidance), and on their eyes there is a covering. Theirs will be a great torment.