Jami` at-Tirmidhi 3875
جامع الترمذي#3875SahihNarrated 'Aishah:"I was not jealous of any wife of the Prophet (ﷺ) as I was jealous of Khadijah, and it was not because I did not see her. It was only because the Messenger of Allah (ﷺ) mentioned her so much, and because whenever he would slaughter a sheep, he would look for Khadijah's friends to gift them some of it
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
In-book reference: 49:275