Yahya related to me from Malik that he had heard more than one oftheir men of knowledge say, "There has been no call to prayer or iqamafor the id al-Fitr or the id al-Adha since the time of the Messengerof Allah, may Allah bless him and grant him peace."Maliksaid, "That is the sunna about which there is no disagreement amongus."
USC-MSA web (English) reference: Book 10, Hadith 1
Arabic reference: Book 10, Hadith 431