《旧唐书·列传·卷五》
七月，到了定州，他原来的将领曹湛、董康买以前逃亡在鲜虞，现在又招集人马响应刘黑闼。
七月，至定州，其旧将曹湛、董康买先亡在鲜虞，复聚兵以应黑闼。
In July, when he arrived in Dingzhou, his former generals Cao Zhan and Dong Kangmai, who had previously fled to Xianyu, now gathered up troops and horses to respond to Liu Heita.