Sahih al-Bukhari 5564
Book 73: Al-Adha Festival Sacrifice (Adaahi) · Narrated by Anas
Arabic
حَدَّثَنَا حَجَّاجُ بْنُ مِنْهَالٍ، حَدَّثَنَا هَمَّامٌ، عَنْ قَتَادَةَ، حَدَّثَنَا أَنَسٌ ـ رضى الله عنه ـ أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يُضَحِّي بِكَبْشَيْنِ أَمْلَحَيْنِ أَقْرَنَيْنِ، وَوَضَعَ رِجْلَهُ عَلَى صَفْحَتِهِمَا، وَيَذْبَحُهُمَا بِيَدِهِ.
English translation
Narrated Anas:The Prophet (ﷺ) used to offer as sacrifices, two horned rams, black and white in color, and used to put his foot on their sides and slaughter them with his own hands
Reference: Sahih al-Bukhari 5564, Book of Al-Adha Festival Sacrifice (Adaahi). English translation by Dr. Muhammad Muhsin Khan.