Al An’am Ayah 123

وَكَذَٲلِكَ جَعَلْنَا فِى كُلِّ قَرْيَةٍ أَكَـٰبِرَ مُجْرِمِيهَا لِيَمْكُرُواْ فِيهَا‌ۖ وَمَا يَمْكُرُونَ إِلَّا بِأَنفُسِهِمْ وَمَا يَشْعُرُونَ ١٢٣ And so We have placed in every society the most wicked to conspire in it. Yet they plot only against themselves, but they fail to perceive it.