Ayesha reported,

I was never as jealous of any woman as I was of Khadijah, even though she had died three years before he married me, because of how often I heard him mention her. His Lord had even commanded him to give her glad tidings of a house in Paradise made of hollow pearls. Whenever the Messenger of Allah ﷺ slaughtered a sheep, he would send portions of it to her close friends.

Bukhari 6004

Sahih

حدثنا عبيد بن إسماعيل حدثنا أبو أسامة عن هشام عن أبيه

عن عائشة رضي الله عنها قالت

ما غرت على امرأة ما غرت على خديجة ولقد هلكت قبل أن يتزوجني بثلاث سنين لما كنت أسمعه يذكرها ولقد أمره ربه أن يبشرها ببيت في الجنة من قصب وإن كان رسول الله ﷺ ليذبح الشاة ثم يهدي في خلتها منها

البخاري 6004صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Manners
Chapter
Honoring covenants is part of faith
Numbering
Darussalam 6004
Bukhari 6004