Sahih Muslim 6280
صحيح مسلم#6280SahihA'isha reported:Never did I feel jealous of any wife amongst the wives of Allah's Apostle (ﷺ) as I feel in case of Khadija (though I had never seen her), for he praised her very often
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: 44:110