《资治通鉴·晋纪·晋纪二十七》
长乐公苻丕派宦官冗从仆射清河人光祚带领数百兵众奔赴中山，与翟真相勾结。
长乐公丕遣宦者冗从仆射清河光祚，将兵数百赴中山，与真相结。
Duke Chang Le, Fu Pi, sent the eunuch, Guangzong zong, a native of Qinghe, to lead hundreds of soldiers to Zhongshan to collude with Di Zhen. 