Surah Al-Hajj, ayah 53

لِّيَجۡعَلَ مَا يُلۡقِي ٱلشَّيۡطَٰنُ فِتۡنَةٗ لِّلَّذِينَ فِي قُلُوبِهِم مَّرَضٞ وَٱلۡقَاسِيَةِ قُلُوبُهُمۡۗ وَإِنَّ ٱلظَّٰلِمِينَ لَفِي شِقَاقِۭ بَعِيدٖ ٥٣

Lliyaj'ala mā yulqish-shaytānu fitnatal lilladhīna fī qulūbihim maradun wal-qāsiyati qulūbuhum wa innaz-zālimīna lafī shiqāqi ba'īd

[That is] so He may make what Satan throws in [i.e., asserts] a trial for those within whose hearts is disease⁹³⁴ and those hard of heart. And indeed, the wrongdoers are in extreme dissension.