Qur'an 41:5 · Fussilat

وَقَالُوا۟ قُلُوبُنَا فِىٓ أَكِنَّةٍۢ مِّمَّا تَدْعُونَآ إِلَيْهِ وَفِىٓ ءَاذَانِنَا وَقْرٌۭ وَمِنۢ بَيْنِنَا وَبَيْنِكَ حِجَابٌۭ فَٱعْمَلْ إِنَّنَا عَٰمِلُونَ

(5) 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;[1383] indeed, we are working."