وَعَنِ ابْنِ عُمَرَ قَالَ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَذْبَحُ وَيَنْحَرُ بِالْمُصَلَّى. رَوَاهُ البُخَارِيّ
Ibn ‘Umar said that the Prophet used to sacrifice and slaughter at the place of prayer. Bukhari transmitted it. (Cf. Chap. 48a)