Ibn ‘Umar said that the Prophet (ﷺ) used to sacrifice and slaughter at the place of prayer. Bukhari transmitted it. (Cf. Chap. 48a)

وَعَنِ ابْنِ عُمَرَ قَالَ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَذْبَحُ وَيَنْحَرُ بِالْمُصَلَّى. رَوَاهُ البُخَارِيّ