Imam al-Shafi'i (may Allah have mercy on him) said: This will suffice, because the Prophet (peace and blessings be upon him) slaughtered some of the sacrificial animals himself and had others slaughter some of them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19163
Sayyiduna Jabir (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) slaughtered some of his sacrificial animals with his own hand and had others slaughter some of them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19163