《汉书·传·西域传下》
汉朝命破羌将军辛武贤率兵一万五千人到敦煌，派人测量地形，树立标记，开凿卑千侯井，向西通渠，准备运粮建仓，讨伐乌就屠。
汉遣破羌将军辛武贤将兵万五千人至郭煌，遣使者案行表，穿卑鞮侯井以西，欲通渠转谷，积居庐仓以讨之。
The Han dynasty ordered General Xin Wuxian to lead an army of 15,000 troops to Dunhuang, dispatch personnel to survey the terrain, erect markers, dig Biqianhou Well, build a canal to the west, and prepare to transport grain and build granaries as supplies for the planned attack on Wujutou.