《史记·七十列传·匈奴列传》
天子想乘机围困匈奴，就颁布诏命说： 高皇帝留给我平城的忧虑，高后时，单于来信所言极为背理叛逆。
天子意欲遂困胡，乃下诏曰： 高皇帝遗朕平城之忧，高后时单于书绝悖逆。
The emperor wanted to take advantage of the opportunity to besiege the Huns, so he issued an edict saying, "Emperor Gao gave me the worry of Pingcheng. When Empress Gao was in power, Chanyu wrote to me, and his words were extremely unreasonable and rebellious.