《辽史·本纪·卷二十八》
十八日，魏国王耶律淳晋封为秦晋国王，任都元帅；以上京留守萧挞不也为契丹行宫都部署兼副元帅。
庚辰，魏国王淳进封秦晋国王，为都元帅，上京留守萧挞不也为契丹行宫都部署兼副元帅。
On the 18th, the King of Wei, Yelv Chun, was crowned King of Qin and Jin, and served as the commander-in-chief; Xiao Taibya, who remained in Shangjing, was appointed to the post of commander-in-chief of the Khitan Palace and deputy commander-in-chief.