《金史·列传·卷二十》
金军回国，帅府承制授萧恭为德州防御使，守卫在滨、棣间的奚人都附属于他。
师还，帅府承制授德州防御使，奚人之屯滨、棣间者皆隶焉。
Jin army returned to China, Shuai Fu Chengzhi granted Xiao Gong the title of Dezhou Defense Envoy, and the Xi people between Bin and Di belonged to him.