30ذٰلِكَ مَبلَغُهُم مِنَ العِلمِ ۚ إِنَّ رَبَّكَ هُوَ أَعلَمُ بِمَن ضَلَّ عَن سَبيلِهِ وَهُوَ أَعلَمُ بِمَنِ اهتَدىٰUzunoglu et al.Such is the extent of their knowledge. Your Lord knows best who has strayed from His path, and who is rightly-guided.