《旧唐书·本纪·卷二十》
七月三十日，决定 忠烈卫圣镇国功臣 、剑南西川节度副大使、执掌节度使事务、辖区内营田使、观察处置使、统押近界诸蛮使、兼任西山八国云南安抚制置使、开府仪同三司、检校太尉、中书令、成都尹、上柱国、琅笽郡王、食邑三千户、实封一百户王建兼任剑南东川、武信军两道都指挥制置使，加授食邑一千户，其余官职照旧。
乙卯，制忠烈卫圣镇国功臣、剑南西川节度副大使、知节度事、管内营田观察处置统押近界诸蛮兼西山八国云南安抚制置等使、开府仪同三司、检校太尉、中书令、成都尹、上柱国、琅邪郡王、食邑三千户、实封一百户王建可兼剑南东川、武信军两道都指挥制置等使，加食邑一千户，余如故。
On the 30th day of the seventh month, it was decided that Loyal and Gallant Defender General, Sword South Xichuan Deputy Special Commissioner, Acting Special Commissioner, Director of Military Farming, Commissioner, and Coordinator of Envoys to Neighboring Barbarian Tribes, acting as Western Mountain Eight States and Yunnan Pacification and Administration Commissioner, Prince of Langye, Grantee of 3,000 Households, and Actual Grantee of 100 Households, Wang Jian would concurrently hold the posts of Special Commissioner for Jiannan Dongchuan and Wuxin Military Circuit, and would be granted an additional 1,000 grantee households, with the rest of his positions remaining the same.