《资治通鉴·汉纪·汉纪三十三》
于是用公文通告郡府拘捕代理县长，并派人酬谢。城中五大家族非常高兴，立刻相继投降。
乃移檄告郡使收守长，而使人谢；城中五姓大喜，即相率降。
So he sent an official document to the county government to arrest the acting county magistrate and sent someone to thank him. The five big families in the city were very happy and immediately surrendered one after another.