Surah Al Hajj Tafseer

لِيَجْعَلَ مَا يُلْقِي الشَّيْطَانُ فِتْنَةً لِّلَّذِينَ فِي قُلُوبِهِم مَّرَضٌ

That He (Allah) may make what is thrown in by Shaytan a trial for those in whose hearts is a disease,

meaning, doubt, Shirk, disbelief and hypocrisy.

Ibn Jurayj said:

لِّلَّذِينَ فِي قُلُوبِهِم مَّرَضٌ

those in whose hearts is a disease,

"The hypocrites, and

وَالْقَاسِيَةِ قُلُوبُهُمْ

and whose hearts are hardened.

means the idolators."

وَإِنَّ الظَّالِمِينَ لَفِي شِقَاقٍ بَعِيدٍ

And certainly, the wrongdoers are in an opposition far-off.

means, far away in misguidance, resistance and stubbornness, i.e., far from the truth and the correct way