Sunan an-Nasa'i, Volume 5, Book 43, Hadith 4371 (DarusSalam) ⓘ
It was narrated from Nafi that: 'Abdullah told him that the Messenger of Allah used to offer the sacrifice at the prayer place.
أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ عَبْدِ الْحَكَمِ، عَنْ شُعَيْبٍ، عَنِ اللَّيْثِ، عَنْ كَثِيرِ بْنِ فَرْقَدٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ، أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يَذْبَحُ أَوْ يَنْحَرُ بِالْمُصَلَّى .
also referenced under: Hadith 4366 (Reference) & Book 43, Hadith 6 (In-Book)