《资治通鉴·梁纪·梁纪十三》
宇文泰想要攻打他，可朱浑道元就率领手下的三千户人家从西北的乌兰津渡河到达灵州，灵州的刺史曹泥出资将他送到了云州。
泰欲击之，道元帅所部三千户西北度乌兰津抵灵州，灵州刺史曹泥资送至云州。
Yu Wentai wanted to attack him, and Kezhuhund Daoyuan led three thousand households to cross the river from Wulanjin in the northwest to Lingzhou. Cao Xi, the Governor of Lingzhou, paid for his trip to Yunzhou. 