《宋史·列传·卷一百三十二》
于是命令洪皓兼淮南、京东等路抚谕使，使李成率所部护卫洪皓到南京。等到经过淮南时，李成正与耿坚共围楚州，责备权楚州事贾敦诗投降敌人，实际上是李成持有反叛之意。洪皓先送信给李成，李成以汴河干涸，虹州有红巾贼寇活动，军粮缺乏，不能前往。
会粘罕等相继死灭，弁密疏其事及金国虚实，曰： 此不可失之时也。 遣李发等间行归报。
So Hong Hao was ordered to serve concurrently as the pacification envoy of Huainan, Jingdong and other circuits, and to have Li Cheng lead his department to escort Hong Hao to Nanjing. By the time he reached Huainan, Li Cheng was besieging Chuzhou with Geng Jian, blaming Jia Dunshi, who was in charge of Chuzhou, for surrendering to the enemy. In fact, Li Cheng had the intention of rebelling. Hong Hao sent a letter to Li Cheng in advance. Li Cheng said that the Bian River was dry, there were red turban bandits in Hongzhou, and the army lacked food, so he could not go.