《资治通鉴·汉纪·汉纪三十六》
况且北匈奴的实力仍然强盛，而我们屯兵边境，开垦田地，戒备敌侵，传闻的事，总是多有失实。
且北狄尚强，而屯田警备，传闻之事，恒多失实。
Moreover, the strength of the Northern Xiongnu is still strong, and our troops are stationed on the border, cultivating the land and guarding against enemy invasion. The rumors are always more or less false.