Sahih Muslim 6557
صحيح مسلم#6557SahihA'isha reported, I did not see anyone else being afflicted with more severe illness than Allah's Messenger (ﷺ). In the narration transmitted by 'Uthman there is a slight variation of wording
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 45:55