I heard Allah's Messenger (ﷺ) saying (as below)

Narrated `Ali:

The Prophet (ﷺ) said, "The best of the world's women is Mary (at her lifetime), and the best of the world's women is Khadija (at her lifetime).
Sahih al-Bukhari Book 63, Hadith 40
← Previous Hadith When I came to Medina. I met `Abdullah bin Salam. He said, "Will you come to me so that I may serve you with Sawiq (i.e. powdered barley) and dates, and let you enter a (blessed) house that in which the Prophet (ﷺ) entered?" Then he added, "You are In a country where the practice of Riba (i.e. usury) is prevalent; so if somebody owe you something and he sends you a present of a load of chopped straw or a load of barley or a load of provender then do not take it, as it is Riba."

Sahih al-Bukhari Book 63, Hadith 39 Next Hadith → I did not feel jealous of any of the wives of the Prophet (ﷺ) as much as I did of Khadija (although) she died before he married me, for I often heard him mentioning her, and Allah had told him to give her the good tidings that she would have a palace of Qasab (i.e. pipes of precious stones and pearls in Paradise), and whenever he slaughtered a sheep, he would send her women-friends a good share of it.

Sahih al-Bukhari Book 63, Hadith 41