I heard the Prophet ﷺ saying, "Mary, the daughter of ʿImran, was the best among the women (of the world of her time) and Khadija is the best amongst the women. (of this nation).  

سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ خَيْرُ نِسَائِهَا مَرْيَمُ ابْنَةُ عِمْرَانَ وَخَيْرُ نِسَائِهَا خَدِيجَةُ  

Messenger of Allah ﷺ said, "Many amongst men reached (the level of) perfection but none amongst the women reached this level except Asia, Pharaoh's wife, and Mary, the daughter of ʿImran. And no doubt, the superiority of ʿAisha to other women is like the superiority of Tharid (i.e. a meat and bread dish) to other meals."  

قَالَ رَسُولُ اللَّهِ ﷺ كَمَلَ مِنَ الرِّجَالِ كَثِيرٌ وَلَمْ يَكْمُلْ مِنَ النِّسَاءِ إِلاَّ آسِيَةُ امْرَأَةُ فِرْعَوْنَ وَمَرْيَمُ بِنْتُ عِمْرَانَ وَإِنَّ فَضْلَ عَائِشَةَ عَلَى النِّسَاءِ كَفَضْلِ الثَّرِيدِ عَلَى سَائِرِ الطَّعَامِ  

Gabriel came to the Prophet ﷺ and said, "O Messenger of Allah ﷺ! This is Khadija coming to you with a dish having meat soup (or some food or drink). When she reaches you, greet her on behalf of her Lord (i.e. Allah) and on my behalf, and give her the glad tidings of having a Qasab palace in Paradise wherein there will be neither any noise nor any fatigue (trouble) . "  

أَتَى جِبْرِيلُ النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللَّهِ هَذِهِ خَدِيجَةُ قَدْ أَتَتْ مَعَهَا إِنَاءٌ فِيهِ إِدَامٌ أَوْ طَعَامٌ أَوْ شَرَابٌ فَإِذَا هِيَ أَتَتْكَ فَاقْرَأْ عَلَيْهَا السَّلاَمَ مِنْ رَبِّهَا وَمِنِّي وَبَشِّرْهَا بِبَيْتٍ فِي الْجَنَّةِ مِنْ قَصَبٍ لاَ صَخَبَ فِيهِ وَلاَ نَصَبَ  

I asked ʿAbdullah bin Abi ʿAufa, "Did the Prophet ﷺ give glad tidings to Khadija?" He said, "Yes, of a palace of Qasab (in Paradise) where there will be neither any noise nor any fatigue."  

قُلْتُ لِعَبْدِ اللَّهِ بْنِ أَبِي أَوْفَى ؓ بَشَّرَ النَّبِيُّ ﷺ خَدِيجَةَ قَالَ نَعَمْ بِبَيْتٍ مِنْ قَصَبٍ لاَ صَخَبَ فِيهِ وَلاَ نَصَبَ  

I did not feel jealous of any of the wives of the Prophet ﷺ as much as I did of Khadija though I did not see her, but the Prophet ﷺ used to mention her very often, and when ever he slaughtered a sheep, he would cut its parts and send them to the women friends of Khadija. When I sometimes said to him, "(You treat Khadija in such a way) as if there is no woman on earth except Khadija," he would say, "Khadija was such-and-such, and from her I had children."  

مَا غِرْتُ عَلَى أَحَدٍ مِنْ نِسَاءِ النَّبِيِّ ﷺ مَا غِرْتُ عَلَى خَدِيجَةَ وَمَا رَأَيْتُهَا وَلَكِنْ كَانَ النَّبِيُّ ﷺ يُكْثِرُ ذِكْرَهَا وَرُبَّمَا ذَبَحَ الشَّاةَ ثُمَّ يُقَطِّعُهَا أَعْضَاءً ثُمَّ يَبْعَثُهَا فِي صَدَائِقِ خَدِيجَةَ فَرُبَّمَا قُلْتُ لَهُ كَأَنَّهُ لَمْ يَكُنْ فِي الدُّنْيَا امْرَأَةٌ إِلاَّ خَدِيجَةُ فَيَقُولُ إِنَّهَا كَانَتْ وَكَانَتْ وَكَانَ لِي مِنْهَا وَلَدٌ  

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?"  

قَالَتِ اسْتَأْذَنَتْ هَالَةُ بِنْتُ خُوَيْلِدٍ أُخْتُ خَدِيجَةَ عَلَى رَسُولِ اللَّهِ ﷺ فَعَرَفَ اسْتِئْذَانَ خَدِيجَةَ فَارْتَاعَ لِذَلِكَ فَقَالَ اللَّهُمَّ هَالَةَ قَالَتْ فَغِرْتُ فَقُلْتُ مَا تَذْكُرُ مِنْ عَجُوزٍ مِنْ عَجَائِزِ قُرَيْشٍ حَمْرَاءِ الشِّدْقَيْنِ هَلَكَتْ فِي الدَّهْرِ قَدْ أَبْدَلَكَ اللَّهُ خَيْرًا مِنْهَا