《旧唐书·列传·卷一百二十九》
执掌礼仪的官员列举旧日的典章制度，也说没有宦官穿着官服辅助祭祀的礼仪规定，谏官也同样这样奏论。
礼官举故事，亦称无中尉朝服助祭之文，谏官亦论之。
Officials in charge of the rituals listed the old regulations and systems and also said that there were no ritual regulations for eunuchs to wear official uniforms to assist in the sacrifices. The Censors also played the same tune.