《汉书·志·五行志中之上》
在此之前征调骑兵步兵屯驻广昌，这年二月又征调步兵屯驻陇西。
先是，发车骑材官屯广昌。是岁二月，复发材官屯陇西。
Before this, cavalry and infantry had been dispatched to garrison Guangchang, and this year in the second month, infantry was again dispatched to garrison Longxi.