《资治通鉴·晋纪·晋纪二十六》
二月，襄阳督护李伯护秘密地派他的儿子到前秦去表示忠诚，请求作为内应。长乐公苻丕命令各路部队进攻襄阳。
二月，襄阳督护李伯护密遣其子送款于秦，请为内应；长乐公丕命诸军进攻之。
On the second month, Xiangyang's Superintendent Li Bohu secretly dispatched his son to express loyalty to Former Qin, requesting to serve as an agent. Chang Le's Lord Fu Pi commanded the forces to attack Xiangyang.