The Walimah (wedding feast) Sunan Ibn Majah 1908

Arabic hadith text
حَدَّثَنَا أَحْمَدُ بْنُ عَبْدَةَ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ ثَابِتٍ الْبُنَانِيِّ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَمَا رَأَيْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ أَوْلَمَ عَلَى شَىْءٍ مِنْ نِسَائِهِ مَا أَوْلَمَ عَلَى زَيْنَبَ فَإِنَّهُ ذَبَحَ شَاةً ‏.‏
Translation
It was narrated that Anas bin Malik said

“I never saw the Messenger of Allah give a wedding feast for any of his wives like the feast he gave for Zainab, for which he slaughtered a sheep.”