2:12
أَلَآ إِنَّهُمْ هُمُ ٱلْمُفْسِدُونَ وَلَـٰكِن لَّا يَشْعُرُونَ
alā innahum humu l-muf'sidūna walākin lā yashʿurūna
Unquestionably, it is they who are the corrupters, but they perceive [it] not.
— Saheeh International
but really they are causing corruption, though they do not realize it.
— M. A. S. Abdel Haleem
Verily! They are the ones who make mischief, but they perceive not.
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali