《元史·列传·卷五十》
京兆是世祖的封藩地，亨简政宽刑，不横征暴敛，经过五年，人民安居乐业，赋税充足。
京兆，藩邸分地也，亨以宽简治之，不事掊克，凡五年，民安而课裕。
Jingzhao was Shizu's vassal state. Heng simplified the government, was lenient towards criminals, and did not engage in extortion. After five years, the people lived in peace and contentment, and the taxes were sufficient.