Hadith 152

the Prophet (ﷺ) said, " No fatigue, illness, worry, grief, harm, or distress befalls a Muslim, even if it were the prick he receives from a thorn, Allah wipes some of his sins for it.

Abu Hurayra (رضي الله عنه)Al-Adab Al-Mufrad 492Adab & Virtues on Sickness