《资治通鉴·后梁纪·后梁纪一》
银胡都指挥使王思同率领所部士兵三千，山后八军巡检使军李承约率领所部士兵二千，投奔河东；刘守光的弟弟刘守奇投奔契丹，不久，也投奔了河东。河东节度使晋王李克用以李承约任匡霸指挥使，王思同任飞腾指挥使。
银胡录都指挥使王思同帅部兵三千，山后八安巡检使李承约帅部兵二千奔河东，守光弟守奇奔契丹，未几，亦奔河东，河东节度使晋王克用以承约为匡霸指挥使，思同为飞腾指挥使。
Commander of Silver Fox Wang Sitong led his 3,000 soldiers, while Eight Armies Inspector of the Rear Li Chengyue led his 2,000 soldiers to defect to Hedong; Liu Shouguang's younger brother Liu Shouqi defected to the Khitans, but shortly after also defected to Hedong. Hedong military governor Prince Jin Li Keyong appointed Li Chengyue director of the Kuangba Commandery and Wang Sitong director of the Feiteng Commandery.