《宋史·列传·卷三十一》
他的马受重伤不能前进，于是他被契丹兵捉住，他的儿子杨延玉也战死在这里。
马重伤不能进，遂为契丹所擒，其子延玉亦没焉。
His horse was badly damaged and could not advance, so he was captured by the Khitan army, and his son Yang Yanyu was also killed here.