Al-Bara bin Azib (may Allah be pleased with him) says that Abu Burdah (may Allah be pleased with him) made his sacrifice before the prayer, so he (peace and blessings be upon him) said: "Make another sacrifice in its place." He said: "O Messenger of Allah! I have a jadh'ah that is better than a musinnah." He (peace and blessings be upon him) said: "Slaughter it in its place, but it will not suffice for anyone at all after you."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19115