It is narrated from Sayyiduna Uqbah bin Amir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The Day of Arafah, the Day of Sacrifice (Nahr) and the Days of Tashriq are our Eid, the people of Islam, and they are days of eating and drinking."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14875