Surah Al-Hajj (The Pilgrimage), Verse 53

لِّیَجْعَلَ مَا یُلْقِی الشَّیْطٰنُ فِتْنَةً لِّلَّذِیْنَ فِیْ قُلُوْبِهِمْ مَّرَضٌ وَّالْقَاسِیَةِ قُلُوْبُهُمْ وَاِنَّ الظّٰلِمِیْنَ لَفِیْ شِقَاقٍ بَعِیْدٍ ۟

Liyaj'ala maa yulqish Shaitaanu fitnatal lillazeena fee quloobihim maradunw walqaasiyati quloobuhum; wa innaz zaalimeena lafee shiqaaqim ba'eed

“That He may make the suggestions thrown in by Satan, but a trial for those in whose hearts is a disease and who are hardened of heart: verily the wrong-doers are in a schism far (from the Truth):”

Quran 22:53 (Yusuf Ali Translation)