《辽史·列传·卷十五》
适逢宋想要在益津建城，高勋上书请求假借巡行视察以干扰之，皇上依准其奏，宋国最终没有将城建成。
会宋欲城益津，勋上书请假巡徼以扰之，帝然其奏，宋遂不果城。
When Song wanted to build a city in Yijin, Gao Xun memorialized to the emperor, requesting leave to set out on a patrol tour in order to obstruct him. The emperor approved his request, and Song was ultimately unable to complete the construction of the city.