Hadith 3211

He said that God's Messenger did not hold such a wedding-feast for any of his wives as he did for Zainab. He held a wedding-feast with a sheep. (Bukhari and Muslim.)

وَعَنْهُ قَالَ: مَا أَوْلَمَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَلَى أَحَدٍ مِنْ نِسَائِهِ مَا أولم على زَيْنَب أولم بِشَاة

Reference: 5632110
In-book reference: Book 13, Hadith 3211