《魏书·列传·卷九十一》
真君十年正月，世祖北伐，高凉王拓跋那出东路，略阳王拓跋羯儿出西路，世祖与景穆帝由中路出涿邪山。
十年正月，车驾北伐，高昌王那出东道，略阳王羯兒出西道，车驾与景穆自中道出涿邪山。
In January of the tenth year of the Zhenjun era, Taizu went on a northern expedition with King Gaoling, Tuoba Na, to the east, King Luoyang, Tuoba Qier, to the west, and Taizu and Emperor Jingmu from the middle to the Zhuoxie Mountain.