Nafi' (may Allah have mercy on him) narrates from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) used to slaughter his sacrifice at the Eid prayer ground, and Nafi' (may Allah have mercy on him) says that Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) also used to do the same.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19120