《元史·本纪·卷五》
十七日，敕令巩昌路总帅汪惟正率领戍守青居山的军队返回，在利州屯田。
庚午，敕巩昌总帅汪惟正将戍青居军还，屯田利州。
On the 17th, the Gongchang Route Commander Wang Weizheng was ordered to lead the troops defending Qingju Mountain back to Lizhou for farming.