Musnad Ahmad 33:215

Nasr ibn Bab narrated to us, from Hajjaj, from Ata, from Jabir ibn Abdullah al-Ansari, who said: "The Messenger of Allah (peace and blessings of Allah be upon him) led us in prayer for the two Eids without an Adhan and without an Iqamah. Then he delivered a sermon to us. Then he descended and walked to the women, and Bilal was with him, no one else with him. He commanded them to give charity, so the woman began casting her earring and her ring to Bilal."