《汉书·传·匈奴传上》
贰师将军便脱离接触率军队往回走，与单于作战十多天。游击将军韩说没有得到什么。
贰师解而引归，与单于连斗十余日，游击亡所得。
The General of the Second Division broke away from contact and walked back with his troops, fighting with the Chanyu for more than ten days. The guerrilla general Han Shuo didn't get anything.