Al-Baqarah - 12

﴿أَلَا إِنَّهُمْ هُمُ الْمُفْسِدُونَ وَلَٰكِنْ لَا يَشْعُرُونَ﴾

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12. Verily! They are the ones who make mischief, but they perceive not.