Musnad Ahmad 1017:89

'Ali ibn Bahr narrated to us, Abu Tumaylah Yahya ibn Wadih al-Azdi narrated to us, Khalid ibn 'Ubayd Abu 'Isam informed me, 'Abdullah ibn Buraydah narrated to us, from his father, who said: The Messenger of Allah (peace and blessings of Allah be upon him) took me to a place in the desert near Makkah. It was dry land surrounded by sand. The Messenger of Allah (peace and blessings of Allah be upon him) said: "The Beast will emerge from this spot," which was a span in length.