Surah Al-Baqarah (The Cow), Verse 12

اَلَاۤ اِنَّهُمْ هُمُ الْمُفْسِدُوْنَ وَلٰكِنْ لَّا یَشْعُرُوْنَ ۟

Alaaa innahum humul mufsidoona wa laakil laa yash'uroon

“Of a surety, they are the ones who make mischief, but they realise (it) not.”

Quran 2:12 (Yusuf Ali Translation)