《北史·本记·卷九》
当时，宇文泰的军队不满一万人，当听到高欢准备渡河的消息，便回军。
时军士不满万人，闻神武将度，乃还。
At that time, Yuwen Tai's army had fewer than 10,000 people. When he heard the news that Gao Huan was preparing to cross the river, he returned his army.