Musannaf Ibn Abi Shayba 13:3026

Abu Bakr narrated to us, he said: Sufyan ibn ‘Uyaynah narrated to us, from ‘Amr, he said: Al-Hakam ibn Ayyub wrote to a group regarding the judiciary, asking them to serve as judges. Jabir ibn Zayd said: "If he had sent for me, I would have fled."