《资治通鉴·宋纪·宋纪五》
拓跋焘又命令张掖王秃发保周、龙骧将军穆罴、安远将军源贺，分别向地方各郡宣布消息，各族胡人投降北魏的又有几十万。
使张掖王秃发保周、龙骑将军穆罢、安远将军源贺分徇诸郡，杂胡降者又数十万。
Tuoba Tao also ordered the King of Zhangye, Tufaba Ba Zhou, the Dragon General Mu Pi, and the General of An Yuan, Yuan He, to announce the news to various local counties, and tens of thousands of Hu people surrendered to the Northern Wei.