《宋史·列传·卷四十九》
狄青到此后，传令余靖不要派使者到交趾借兵，并立即上奏说： 交趾国李德政声称将率步兵五万、骑兵一千赶来支援，不是真的。
青既至，檄余靖无通使假兵，即上奏曰： 李德政声言将步兵五万、骑一千赴援，非其情实。
After Di Qing arrived, he ordered Yu Jing not to send envoys to Jiaozhi to borrow troops, and immediately wrote a memorial saying: Li Dezhe of the Jiaozhi country claimed that he would lead 50,000 infantry and 1,000 cavalry to support him, which is not true.