《汉书·传·萧望之传》
京兆尹张敞上书说： 国家的军队在边疆，军队夏天出发，陇西郡以北，安定郡以西，官吏和百姓都参与供给运转，农业会荒废很多，从前也没有余粮储备，虽然羌虏的叛乱被击破了，但是第二年春天民众的粮食必定匮乏。
京兆尹张敞上书言： 国兵在外，军以夏发，陇西以北，安定以西，吏民并给转输，田事颇废，素无余积，虽羌虏以破，来春民食必乏。
Prefect Kunning Zhang Chang submitted a memorial, which said: “The nation’s armies are on the frontier. They set out in the summer. Official business and labor services are both demanded to the north of Longxi Commandery and to the west of Anding Commandery. Agriculture will fall into serious decline. Moreover, there are no surplus provisions stored up in advance. Although the rebellion of the Qiang barbarian may be put down, in the spring of the following year, the people in this area will certainly suffer from famine.”