Musnad Ahmad 948:5

Yunus narrated to us, Hammad—meaning Ibn Zayd—narrated to us, from Hisham ibn Urwah, from his father, from Abdullah ibn al-Zubayr, from Sufyan ibn Abi Zuhayr. Ibn al-Zubayr said: I was informed that he was at the season (of Hajj), so I came to him and asked him, and he informed me. He said: I heard the Messenger of Allah, peace and blessings of Allah be upon him, saying: "You will conquer al-Sham, and people will come driving their livestock." He said: "They conquered all of it." And he said: "Driving their livestock."