Musannaf Ibn Abi Shayba 37:102

Waki’ narrated to us, from his father, from al-Hizhaz, from Yuthay’, who said: "If you see Kufa surrounded by a wall, then get out of it, even if by crawling." (Red) [The text] refers to the bay horses and the dark horses, until two men dispute over a woman; one says, "Her upper part is mine," and the other says, "Her lower part is mine."