Amir al-Mu’minin ‘Alī (a.s.) was once asked

الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) ـ لَمّا سُئِلَ عن أشَدِّ المَصائبِ ـ: المُصيبَةُ بِالدِّينِ

Amir al-Mu’minin ‘Alī (a.s.) was once asked what the worst affliction was, to which he replied:

“To be afflicted with a blow to one’s faith.”