《明史·列传·卷六十五》
侦探报告寇贼放牧逼近边境，朝廷商议派遣杨俊会同宣府的军队出塞清剿。
谍报寇牧近边，廷议遣杨俊会宣府兵出剿。
Detective reports that the bandits are grazing and approaching the border. The court deliberates on sending Yang Jun to meet with the troops of Xuanfu to go out of the fortress to clear them out.