《旧唐书·本纪·卷一》
九月十日，高祖亲率众围河东，屈突通自己坚守不出，高祖于是命令攻城，不胜而回。
戊午，高祖亲率众围河东，屈突通自守不出，乃命攻城，不利而还。
On September 10, Gaozu personally led his troops to surround Hedong. Qutu Tong kept defending without going out, so Gaozu ordered an attack on the city, but failed and returned.