Uqbah bin Amir (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "The Day of Arafah, the Day of Sacrifice and the days of Tashriq are the days of Eid for us, the people of Islam, and they are days of eating and drinking."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8462