Abu Huraira reported that Gabriel came to Allah's Apostle (ﷺ) and said
Allah's Messenger, lo. Khadija is coming to you with a vessel of seasoned food or drink. When she comes to you, offer her greetings from her Lord, the Exalted and Glorious, and on my behalf and give her glad tidings of a palace of jewels in Paradise wherein there is no noise and no toil. This hadith has been narrated on the authority of Abu Huraira through another chain of transmitters with a slight variation of wording.