《资治通鉴·晋纪·晋纪四十》
刘裕对朱龄石说： 你到了那里，可以命令刘义真轻装疾速前进。等出了潼关，才可以放慢脚步。
裕谓龄石曰： 卿至，可敕义真轻装速发，既出关，然后可徐行。
Liu Yu said to Zhu Ling Shi: When you get there, you can order Liu Yizhen to travel quickly and lightly equipped. Only slow down after leaving Tongguan.