《资治通鉴·晋纪·晋纪二十六》
代国的别部大人刘库仁，勇猛而有智谋，刘卫辰则狡猾多变，他们都不宜独担重任。
其别部大人刘库仁，勇而有智；铁弗卫辰，狡猾多变，皆不可独任。
The chief of another of Dai’s tribes, Liu Kuren, was brave and wise, while Liu Weichen was cunning and unpredictable. Neither of them was suitable to bear the responsibility alone.