وَإِذا ما أُنزِلَت سورَةٌ نَظَرَ بَعضُهُم إِلىٰ بَعضٍ هَل يَراكُم مِن أَحَدٍ ثُمَّ انصَرَفوا ۚ صَرَفَ اللَّهُ قُلوبَهُم بِأَنَّهُم قَومٌ لا يَفقَهونَ

Whenever a chapter is revealed, they glance at each other, asking, “Does anyone see you?” Then, they turn away. God has turned their hearts away, because they are a people who don’t understand.