وَكَذٰلِكَ جَعَلنا في كُلِّ قَريَةٍ أَكابِرَ مُجرِميها لِيَمكُروا فيها ۖ وَما يَمكُرونَ إِلّا بِأَنفُسِهِم وَما يَشعُرونَ

And thus We have placed within every city the greatest of its criminals to conspire therein. But they conspire not except against themselves, and they perceive [it] not.