《新五代史·列传·杂传第四十二》
李愚说： 陛下按家人的礼节见他，那么下拜是应该的；我对他没有什么私亲，难道该随便下拜吗？ 
愚曰： 陛下以家人礼见之，则拜宜也。臣于王无所私，岂宜妄有所屈？ 
Li Yu said: Your Majesty sees him according to family etiquette, so it is right to bow down; I have no private relatives with him, should I bow down at will? 