《旧五代史·后晋·列传六》
到高祖树立义旗进入洛阳，房知温不仅不马上前去献礼，还在军帐之下炫耀武力。颜絗严肃地对他说： 末帝富贵拥有天下，力量雄厚，关于打仗，哪里是明公你可以匹敌的？
及高祖建义入洛，尚不即进献，耀兵于牙帐之下，衎正色谓曰： 清泰富有天下，多力善战，岂明公之比！
When the founding emperor raised the flag and entered Luoyang, Fang Zhiwen not only failed to come forward and offer his submission, but also flaunted his military might beneath the imperial tent. Yan Jin said to him sternly, “The Late Emperor enjoyed the wealth and power of the entire realm and had formidable strength. When it comes to fighting, how can Your Highness possibly be his equal?