《资治通鉴·后梁纪·后梁纪六》
刘鄩在兖州包围张万进已经一年多，城中危急窘困，这时晋王正和后梁军在黄河上作战，无力解救兖州。
刘鄩围张万进于兗州经年，城中危窘，晋王方与梁人战河上，力不能救。
Liu Bi had besieged Zhang Wanjin in Yanzhou for more than a year. The city was in critical distress. At this time, the King of Jin was fighting against the Houliang army on the Yellow River, and was unable to relieve Yanzhou's siege.