Sahih Muslim 1049
صحيح مسلم#1049SahihAbu Bakr b. 'Abd al-Rahman reported that he had heard Abu Huraira say that the Messenger of Allah (ﷺ) said like it, but he substituted" the aged" for 'the infirm
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: 4:211