Sayyiduna Zaid bin Khalid al-Juhani (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) distributed some goats among his companions for sacrifice, and he (peace be upon him) gave me a six-month-old kid from among them. I brought it to the Prophet (peace be upon him) and said, "O Messenger of Allah (peace be upon him), this is a six-month-old kid." The Prophet (peace be upon him) said, "You may sacrifice it."
Hadith Referenceصحیح ابن حبان / كتاب الأضحية / 5899
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيحسن صحيح - «صحيح أبي داود» (2993).فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده حسن