《资治通鉴·唐纪·唐纪二十八》
宋还上奏道： 大理寺卿元行冲一向被认为才行俱佳，上任初期也确实与大家的议论一致，但在具体处理了一些问题之后，却发现并不称职，请求陛下仍让他任左散骑常侍，任命李朝陷代任大理寺卿之职。
又奏： 大理卿元行冲素称才行，初用之时，实允佥议；当事之后，颇非称积，请复以为左散骑常侍，以李朝隐代之。
Song also reported to the government: "Yuan Xingchong, the master of Dali Temple, has always been considered excellent in both morality and ability. In the early days after he took office, he did live up to everyone's discussion, but after a specific problems were dealt with, it was found that he was not competent enough. Please give him the post of the constant waiter of Zuo Sanqi, and appoint Li Chaoxian to take up the position of Dali Temple Chief."