2:12
أَلَآ إِنَّهُمْ هُمُ ٱلْمُفْسِدُونَ وَلَـٰكِن لَّا يَشْعُرُونَ
alā innahum humu l-muf'sidūna walākin lā yashʿurūna
but really they are causing corruption, though they do not realize it.
Verily! They are the ones who make mischief, but they perceive not.