أَلَآ إِنَّهُمْ هُمُ ٱلْمُفْسِدُونَ وَلَٰكِن لَّا يَشْعُرُونَ
No indeed, it is they who are the corrupters, but they do not sense it.
Roots in this verse: ف س د (fsd), ش ع ر ($Er)