“The Messenger of Allah ﷺ used to sacrifice two horned, black-and-white rams and he would say the Name of Allah and pronounce His greatness. I saw him slaughtering them with his own hand, putting his foot on their sides.” (Using translation from Ibn Mājah 3120)
أَنَّ النَّبِيَّ ﷺ ضَحَّى بِكَبْشَيْنِ أَقْرَنَيْنِ أَمْلَحَيْنِ لَقَدْ رَأَيْتُهُ يَذْبَحُهُمَا بِيَدِهِ وَاضِعًا عَلَى صِفَاحِهِمَا قَدَمَهُ وَيُسَمِّي وَيُكَبِّرُ