《旧五代史·后梁·末帝纪上》
这时末帝派偏将杨延直领兵一万多人驻扎澶州以接应刘寻阝，不久晋王假称回太原，刘寻阝信以为真。
时帝遣偏将杨延直领军万余人屯澶州以应鄩，既而晋王诈言归太原，刘鄩以为信。
At this time, the last emperor sent partial general Yang Yanzhi to lead tens of thousands of troops to station in Chan Zhou to respond to Liu Xunyu. Soon, the King of Jin feigned going back to Taiyuan and Liu Xunyu believed it to be true.