Sayyiduna Anas (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) sacrificed two rams. Placing his foot on their sides, he slaughtered them with his own hand, saying: 'Bismillah, Allahu akbar' (In the name of Allah; Allah is the Greatest).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19174