´Aishah narrated:` "I was not jealous of any wife of the Prophet as I was jealous of Khadijah, and it was not because I saw her. It was only because the Messenger of Allah 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."
Hadith Referenceسنن ترمذي / كتاب البر والصلة عن رسول الله صلى الله عليه وسلم / 2017