《战国策·魏一·秦败东周》
于是扬言谠： 听说东周、魏国已叫窦屡割让魏国土地给奉阳君，听凭秦国怎么办了。
因扬言曰： 闻周、魏令窦屡以割魏于奉阳君，而听秦矣。 
Yang Kang spread the word: "I hear that the Eastern Zhou and the Wei states have instructed Dou Lu to cede territory to the Fengyang Lord at the mercy of the Qin state."