《资治通鉴·晋纪·晋纪二十一》
冉闵听了劝谏后正想不再出征，而道士法饶却进言说： 陛下包围襄国已有一年之久，然而没有取得丝毫的胜利。如今敌人来了，却避而不攻，今后将怎样调动将士呢！
闵将止，道士法饶进曰： 陛下围襄国经年，无尺寸之功，今贼至，又避不击，将何以使将士乎！
After listening to the advice, Ran Min wanted to give up going out to fight, but the Taoist Fa Rao said: "Your Majesty has been besieging Xiangguo for a year without any victory. Now that the enemy has come, you avoid attacking. How are you going to motivate your soldiers in the future! ?"