Al-Hajj 22:53

لِّيَجْعَلَ مَا يُلْقِى ٱلشَّيْطَـٰنُ فِتْنَةً لِّلَّذِينَ فِى قُلُوبِهِم مَّرَضٌ وَٱلْقَاسِيَةِ قُلُوبُهُمْ ۗ وَإِنَّ ٱلظَّـٰلِمِينَ لَفِى شِقَاقٍۭ بَعِيدٍ

Liyajʿala mā yul'qī l-shayṭānu fit'natan lilladhīna fī qulūbihim maraḍun wal-qāsiyati qulūbuhum wa-inna l-ẓālimīna lafī shiqāqin baʿīdin

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