Sahih al-Bukhari 5168

Arabic

حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، حَدَّثَنَا حَمَّادٌ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ، قَالَ مَا أَوْلَمَ النَّبِيُّ صلى الله عليه وسلم عَلَى شَىْءٍ مِنْ نِسَائِهِ، مَا أَوْلَمَ عَلَى زَيْنَبَ أَوْلَمَ بِشَاةٍ‏.‏

English translation

Narrated Anas:The Prophet (ﷺ) did not give a better wedding banquet on the occasion of marrying any of his wives than the one he gave on marrying Zainab, and that banquet was with (consisted of) one sheep

Reference: Sahih al-Bukhari 5168, Book of Wedlock, Marriage (Nikaah). English translation by Dr. Muhammad Muhsin Khan.