《资治通鉴·唐纪·唐纪七十七》
五月，甲午，朝廷在遂州设置武信节度使司，划出遂州、合州等五个州隶属其下。
五月，甲午，置武信军于遂州，以遂、合等五州隶之。
On May, Jiawu, the imperial court established Wuxin's Military Headquarters Office in Suizhou, and five prefectures, including Suizhou and Hezhou, were subordinate to it.