《后汉书·列传·任李万邳刘耿列传》
拜耿纯为前将军，封耿乡侯，耿讠斤、耿宿、耿植都拜为偏将军，使他们与耿纯居前队，降下宋子，又跟从攻下曲阳及中山。
拜纯为前将军，封耿乡侯，、宿、植皆偏将军，使与纯居前，降宋子，从攻下曲阳及中山。
He appointed Geng Chun as Vanguard General and gave him the title of Marquis of Geng Township, and gave Geng Xijin, Geng Su and Geng Zhi the rank of Auxiliary Generals, making them march ahead with Geng Chun, defeating Song Zi, and following him to capture Quyang and Zhongshan.