《资治通鉴·晋纪·晋纪二十三》
李俨十分害怕，退守罕，派他哥哥的儿子李纯去向前秦谢罪，并且请求救援。
俨惧，退守枹罕，遣其兄子纯谢罪于秦，且请救。
Li Yan was terrified and retreated to Han, sending his nephew Li Chun to offer his apologies to Former Qin and request reinforcements.