《明史·列传·卷一百九十七》
当时贼党已经攻陷保定，李建泰投降，畿内各个府县都归附了贼人。
时贼党已陷保定，李建泰降，畿内府县悉附。
At that time, the thieves had already captured Baoding. Li Jiantai surrendered, and all the prefectures and counties within the Jizu area surrendered to the thieves.