Musannaf Ibn Abi Shayba 16:909

Abu Bakr narrated to us, he said: Ali bin Mushir narrated to us, from al-Shaybani, from Ash'ath bin Abi al-Sha'tha', from Mu'awiyah bin Suwayd, from al-Bara', he said: The Messenger of Allah (may Allah bless him and grant him peace) forbade us from wearing gold rings.