《新五代史·列传·宦者传第二十六》
这是从前的史书所载的宦官的灾祸常常如此，不只是在一个朝代的事。
此前史所载宦者之祸常如此者，非一世也。
It was frequently the case that eunuchs brought about calamities, as recorded in the historical books of the past; it was not a matter that only happened during a single dynasty.