The Messenger of Allah ﷺ used to sacrifice two horned rams. He would place his foot on their sides, slaughter them with his own hand, and pronounce the name of Allah and say the takbeer.
حدثنا إسماعيل حدثنا سعيد عن قتادة
كان رسول الله ﷺ يضحي بكبشين أقرنين يطأ على صفاحهما ويذبحهما بيده ويسمي ويكبر