Al-Isra 17:46
وَجَعَلْنَا عَلَىٰ قُلُوبِهِمْ أَكِنَّةً أَن يَفْقَهُوهُ وَفِىٓ ءَاذَانِهِمْ وَقْرًا ۚ وَإِذَا ذَكَرْتَ رَبَّكَ فِى ٱلْقُرْءَانِ وَحْدَهُۥ وَلَّوْا۟ عَلَىٰٓ أَدْبَـٰرِهِمْ نُفُورًا
WajaAAalna AAala quloobihimakinnatan an yafqahoohu wafee athanihim waqran wa-ithathakarta rabbaka fee alqur-ani wahdahuwallaw AAala adbarihim nufoora
And We have placed over their hearts coverings, lest they understand it, and in their ears deafness. And when you mention your Lord alone in the Qur’ān, they turn back in aversion.
and We put covers on their hearts barring them from understanding it, and (We put) deafness in their ears; and when you refer to your Lord alone (without referring to their presumed deities,) in the Qur’ān, they turn their backs in aversion.