Tafseer Ibn Kathir of AL MU'MINUUN [63]

بَلْ قُلُوبُهُمْ فِي غَمْرَةٍ مِّنْ هَذَا وَلَهُمْ أَعْمَالٌ مِن دُونِ ذَلِكَ هُمْ لَهَا عَامِلُونَ

But their hearts are covered with confusion over this, and they have [evil] deeds besides disbelief which they are doing,