《明史·本纪·卷五》
十九日，又上书请求出征，十二月，李景隆调兵于德州，准备明年大举进攻。
乙亥，复上书自诉。十二月，景隆调兵德州，期以明年春大举。
On the 19th, Zhu Di sent a letter asking to attack again, and in December, Li Jinglong moved his forces to Dezhou. He planned to launch a massive offensive the following year.