‏فضائل الصحابة‏ : Hadeeth No:5974 'A'isha reported: Never did I feel jealous of any wife amongst the wives of Allaah's Prophet (sallAllaahu alayhi wa sallam) as I feel in case of Khadija (though I had never seen her), for he praised her very often....

‏الصلاة : Hadeeth No:1790 This hadith has been narrated by Shu'ba with the same chain of transmitters....