Musannaf Ibn Abi Shayba 33:671

Muhammad ibn Ubayd narrated to us, from al-A’mash, from ‘Umarah, from Abu Ma’mar, who said: We entered upon ‘Amr ibn Sharhabil. He said: "Go with us to the person who most resembles ‘Abdullah in demeanor and guidance." So we entered upon ‘Alqamah.