《元史·本纪·卷十》
二十七日，临洮、巩昌、通安等十处驿站因为年岁饥荒，供奉的差役繁重，有典卖子女以供奉差役的，命选派官员前去安抚他们。
癸卯，以临洮、巩昌、通安等十驿岁饥，供役繁重，有质卖子女以供役者，命选官抚治之。
On the 27th day, as the ten post stations such as Lintao, Gongchang, and Tongan were suffering from famine, the corvée was too heavy, and some people had to sell their children and daughters to pay for the corvée, officials were ordered to go to appease them.