(20) بَاب تَزْوِيجِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ خَدِيجَةَ وَفَضْلِهَا رَضِيَ اللَّهُ عَنْهَا
Narrated 'Aisha:
Once Hala bint Khuwailid, Khadija's sister, asked the permission of the Prophet (ﷺ) to enter. On that, the Prophet (ﷺ) remembered the way Khadija used to ask permission, and that upset him. He said, "O Allah! Hala!" So I became jealous and said, "What makes you remember an old woman amongst the old women of Quraish an old woman (with a teethless mouth) of red gums who died long ago, and in whose place Allah has given you somebody better than her?"
Reference: Sahih al-Bukhari 3821
In-book reference: Book 63, Hadith 47
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 58, Hadith 168