Musannaf Ibn Abi Shayba 3:3787

'Abd al-Rahman ibn Mahdi narrated to us, from Hammad ibn Salamah, from Hisham ibn 'Urwah, that 'Urwah used to pray following the prayer of the Imam while he was in the house of Humayd ibn 'Abd al-Rahman ibn al-Harith. And between them and the mosque was a road.