《资治通鉴·秦纪·秦纪二》
恰逢蒙毅代替始皇外出祈祷山川神灵求福后返回，赵高即对胡亥说： 始皇帝想要荐举贤能确定你为太子已经很长时间了，可是蒙毅一直规劝他，认为不可如此。
会蒙毅为始皇出祷山川，还至。赵高言于胡亥曰： 先帝欲举贤立太子久矣，而毅谏以为不可，不若诛之！ 
Meng Yi, who had been sent out by the First Emperor to pray to the spirits of the mountains and rivers, had just returned, and Zhao Gao said to Hu Hai: "The First Emperor had wanted to promote virtuous men and appoint you as Crown Prince for a long time, but Meng Yi had repeatedly advised him against it."