Surah Fussilat 41:5
وَقَالُوا۟ قُلُوبُنَا فِىٓ أَكِنَّةٍ مِّمَّا تَدْعُونَآ إِلَيْهِ وَفِىٓ ءَاذَانِنَا وَقْرٌ وَمِنۢ بَيْنِنَا وَبَيْنِكَ حِجَابٌ فَٱعْمَلْ إِنَّنَا عَٰمِلُونَ ٥
EnglishSahih International
And they say, "Our hearts are within coverings from that to which you invite us, and in our ears is deafness, and between us and you is a partition, so work; indeed, we are working."