《宋史·列传·卷二百零三》
刘恕著有《五代十国纪年》，以之比拟《十六国春秋》。另外，刘恕还采摘上古以来到周威烈王时期为《史记》、《左传》所不载的史料，编有一部《通鉴外纪》。
著《五代十国纪年》以拟《十六国春秋》，又采太古以来至周威烈王时事，《史记》、《左氏传》所不载者，为《通鉴外纪》。
Liu Shu wrote "Five Dynasties and Ten Kingdoms Chronology", which he compared to the "Sixteen Kingdoms Chunqiu". In addition, Liu Shu also collected historical materials from ancient times to the period of King Weilie of Zhou that were not included in "Historical Records" and "Zuo Zhuan", and compiled an "Outer Chronicles of Tongjian".