Musannaf Ibn Abi Shayba 3:2725

'Isa ibn Yunus narrated to us, from Hisham ibn al-Ghazi, from 'Ubadah ibn Nasi, who said: 'Abd al-Malik ibn Marwan went out intending to pray in the Sacred House (Bayt al-Maqdis), and he pitched his tent at Fathur Ibrahim. I met him while I was with the soldiers, and I entered upon him. He said: "O 'Ubadah, we are a traveling people; the Friday prayer is not incumbent upon us, so lead your companions in the Friday prayer."