Surah Fushshilat Ayah 5

وَقَالُواْ قُلُوبُنَا فِيٓ أَكِنَّةٖ مِّمَّا تَدۡعُونَآ إِلَيۡهِ وَفِيٓ ءَاذَانِنَا وَقۡرٞ وَمِنۢ بَيۡنِنَا وَبَيۡنِكَ حِجَابٞ فَٱعۡمَلۡ إِنَّنَا عَٰمِلُونَ ٥

Wa qālū qulūbunā fī akinnatim mimmā tadʿūnā ilayhi wa fī ādhāninā waqruw wa mim bayninā wa baynika ḥijābun faʿmal innanā ʿāmilūn.

And they say, "Our hearts are within coverings [i.e., screened] from that to which you invite us, and in our ears is deafness, and between us and you is a partition, so work;¹ indeed, we are working."

Translation: Sahih International