《旧唐书·本纪·卷十七》
初十，内官王宗禹出使渤海回来介绍说，渤海设置有左右神策军，左右三军一百二十司，并绘图呈给文宗。
戊辰，内养王宗禹渤海使回，言渤海置左右神策军事、左右三军一百二十司，画图以进。
On the 10th, the eunuch Wang Zongyu returned from his mission to Bohai and introduced that Bohai had set up Left and Right Shence Army, 120 divisions of the Left and Right three armies, and presented a drawing to Wenzong.