《金史·列传·卷四十九》
武州是边郡，正当敌军的要害，让郭宪领兵离城，敌军或乘机进攻，谁来防守？
武州边郡，正当兵冲，使宪率军离城，敌或乘之，孰与守御？
Wuzhou is a border town located at a strategic point on the enemy's front line. If Guo Xian led his troops away from the city, the enemy might take the opportunity to attack. Who would be left to defend?