Musnad Ahmad 643:3

Abu al-Nadr narrated to us, Shu'bah narrated to us, from 'Abdullah ibn Abi al-Safar, he said: I heard al-Sha'bi narrating from 'Urwah ibn Mudarris ibn Aws ibn Harithah ibn Lam, he said: I came to the Prophet, may Allah bless him and grant him peace, and he mentioned it.