Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Urwah that Hazrat Umar would make the mount go faster and would recite these verses: "The mount hastens towards you with speed, until it becomes weak. The child in its belly moves, its religion is different from the religion of the Christians." The narrator says that Hazrat Abdullah bin Zubair would also ride his mount very swiftly.