《旧唐书·本纪·卷十二》
夏四月十四日，以永平、宣武、河阳等军节度都统、检校司徒、平章事李勉为淮西招讨使，襄阳帅贾耽、江西嗣曹王等人为副。
夏四月庚申，以永平宣武河阳等军节度都统、检校司待、平章事李勉为淮西招讨使，襄阳帅贾耽、江西嗣曹王等为之副。
On the 14th of the fourth month of summer, Li Mian, the joint commander of Yongping, Xuanwu, Heyang and other military Jiedushis, Jianxiao S徒, Pingzhang Shi, was appointed as the recruitment envoy of Huai Xi, Jiang Xi and other members of the Cao Wang family were appointed as deputy commanders.