Sahih al-Bukhari
Oneness, Uniqueness of Allah (Tawheed) — Hadith #7497
هَذِهِ خَدِيجَةُ أَتَتْكَ بِإِنَاءٍ فِيهِ طَعَامٌ أَوْ إِنَاءٍ فِيهِ شَرَابٌ فَأَقْرِئْهَا مِنْ رَبِّهَا السَّلاَمَ وَبَشِّرْهَا بِبَيْتٍ مِنْ قَصَبٍ لاَ صَخَبَ فِيهِ وَلاَ نَصَبَ "
The chain (isnad) appears to be missing from this record. Under review.
The Prophet (ﷺ) said that Gabriel said, "Here is Khadija coming to you with a dish of food or a tumbler containing something to drink. Convey to her a greeting from her Lord (Allah) and give her the glad tidings that she will have a palace in Paradise built of Qasab wherein there will be neither any noise nor any fatigue (trouble)." (See Hadith No. 168, Vol. 5)
هَذِهِ خَدِيجَةُ أَتَتْكَ بِإِنَاءٍ فِيهِ طَعَامٌ أَوْ إِنَاءٍ فِيهِ شَرَابٌ فَأَقْرِئْهَا مِنْ رَبِّهَا السَّلاَمَ وَبَشِّرْهَا بِبَيْتٍ مِنْ قَصَبٍ لاَ صَخَبَ فِيهِ وَلاَ نَصَبَ "
See also hadith 168.