Sahih al-Bukhari 982
Book 13: The Two Festivals (Eids) · Narrated by Ibn `Umar
Arabic
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، قَالَ حَدَّثَنَا اللَّيْثُ، قَالَ حَدَّثَنِي كَثِيرُ بْنُ فَرْقَدٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يَنْحَرُ أَوْ يَذْبَحُ بِالْمُصَلَّى.
English translation
Narrated Ibn `Umar:The Prophet (ﷺ) used to Nahr or slaughter sacrifices at the Musalla (on `Id-ul-Adha)
Reference: Sahih al-Bukhari 982, Book of The Two Festivals (Eids). English translation by Dr. Muhammad Muhsin Khan.