Al An'am, 123 Ayah
6:123
وَكَذَٰلِكَ جَعَلۡنَا فِي كُلِّ قَرۡيَةٍ أَكَٰبِرَ مُجۡرِمِيهَا لِيَمۡكُرُواْ فِيهَاۖ وَمَا يَمۡكُرُونَ إِلَّا بِأَنفُسِهِمۡ وَمَا يَشۡعُرُونَ ١٢٣
Wa Kadhalika Ja`alnā Fī Kulli Qaryatin 'Akābira Mujrimīhā Liyamkurū Fīhā ۖ Wa Mā Yamkurūna 'Illā Bi'anfusihim Wa Mā Yash`urūna
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.