《资治通鉴·汉纪·汉纪五十七》
庞德公曾经说诸葛亮是 卧龙 ，庞统是 凤雏 ，司马徽是 水镜 。所以，当司马徽与刘备谈话时，向刘备称赞诸葛亮与庞统。
德公常谓孔明为卧龙，士元为凤雏，德操为水鉴；故德操与刘备语而称之。
Pang Tonggong once said that Zhuge Liang was  卧龙 , Pang Tong was  凤雏 , and Sima Hui was  水镜 . Therefore, when Sima Hui spoke with Liu Bei, he praised Zhuge Liang and Pang Tong to Liu Bei.