Sayyiduna Zayd bin Khalid al-Juhani (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) distributed goats among the Companions and gave me a jadha'ah of goats, and said: "Sacrifice it." I asked: This is a jadha'ah of goats; shall I sacrifice it? He (peace and blessings be upon him) permitted it, so I slaughtered it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19064