Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) offered the Eid prayer without adhan or iqamah, and he (peace and blessings be upon him) delivered two sermons, separating them by sitting.
Al-Bazzar recorded it by way of wijadah, and its chain contains a narrator whom I do not know.