Sahih Muslim 2435 a
'A'isha reported:
Never did I feel jealous of any woman as I was jealous of Khadija. She had died three years before he (the Holy Prophet) married me. I often heard him praise her, and his lord, the Exalted and Glorious, had commanded him to give her the glad tidings of a palace of jewels in Paradise: and whenever he slaughtered a sheep he presented (its meat) to her female companions.
حَدَّثَنَا أَبُو كُرَيْبٍ، مُحَمَّدُ بْنُ الْعَلاَءِ حَدَّثَنَا أَبُو أُسَامَةَ، حَدَّثَنَا هِشَامٌ، عَنْ أَبِيهِ، عَنْ 
 عَائِشَةَ، قَالَتْ مَا غِرْتُ عَلَى امْرَأَةٍ مَا غِرْتُ عَلَى خَدِيجَةَ وَلَقَدْ هَلَكَتْ قَبْلَ أَنْ يَتَزَوَّجَنِي
 بِثَلاَثِ سِنِينَ لِمَا كُنْتُ أَسْمَعُهُ يَذْكُرُهَا وَلَقَدْ أَمَرَهُ رَبُّهُ عَزَّ وَجَلَّ أَنْ يُبَشِّرَهَا بِبَيْتٍ مِنْ قَصَبٍ
 فِي الْجَنَّةِ وَإِنْ كَانَ لَيَذْبَحُ الشَّاةَ ثُمَّ يُهْدِيهَا إِلَى خَلاَئِلِهَا ‏.‏