Musnad Ahmad 18691 — Hadith of al-Bara’ ibn ‘Azib

Hazrat Abu Burdah bin Niyar (may Allah be pleased with him) slaughtered his animal before the Eid prayer. He said, "O Messenger of Allah! I have already slaughtered my animal." The Noble Prophet (peace and blessings be upon him) said to him, "Sacrifice another animal in its place." He said, "O Messenger of Allah! Now I only have a six-month-old lamb, which is better than a year-old animal." The Noble Prophet (peace and blessings be upon him) said, "Slaughter it in its place, but no one else besides you is permitted to do so."