《宋史·列传·卷二百零七》
曾经强取土地到青涧一带，突然遇见金人，众人都陡然一惊，彦仙依傍山势树立疑兵旗帜，慢慢地占据柳林，解甲自如。
尝略地至青涧，猝遇金人，众愕眙，彦仙依山植疑帜，徐据柳林，解甲自如。
He once took land all the way to Qingjian, and suddenly encountered Jurchens. Everyone was shocked. Yixian relied on the mountains to set up suspicious flags, slowly occupied Liulin, and disarmed freely.