Ar Rum, 59 Ayah
30:59
كَذَٰلِكَ يَطۡبَعُ ٱللَّهُ عَلَىٰ قُلُوبِ ٱلَّذِينَ لَا يَعۡلَمُونَ ٥٩
Kadhālika Yaţba`u Al-Lahu `Alá Qulūbi Al-Ladhīna Lā Ya`lamūna
Thus does Allah seal the hearts of those who do not know.