《资治通鉴·陈纪·陈纪六》
丁酉，北周国主从长安出发；壬寅，渡过黄河，和各路军队会合。
丁酉，周主发长安；壬寅，济河，与诸军合。
On Ding You, the emperor of the Northern Zhou set off from Chang'an; on Ren Yin, crossed the Yellow River and converged with the troops from all directions.