《资治通鉴·秦纪·秦纪一》
嬴政为此担心吕不韦会生出什么变故，便写信给他说： 您为秦国立下了什么功劳呢？秦国封您在河南，享用十万户封地的收入？
王恐其为变，乃赐文信侯书曰： 君何功于秦，封君河南，食十万户？
Ying Zheng was concerned about what kind of changes Lü Buwei might cause, so he wrote to him and said: What meritorious services did you render to Qin to be enfeoffed by Qin in Henan, enjoying the income from a hundred thousand households?