《汉书·传·傅常郑甘陈段传》
而且常惠听从想要攻击匈奴的乌孙，郑吉迎接自己来归顺的曰逐王，还都裂土封爵。
且常惠随欲击之乌孙，郑吉迎自来之日逐，犹皆裂土受爵。
Chang Hui listened to Wusun, who wanted to attack the Huns, and Zheng Ji greeted Rizhu Wang, who came to surrender, and all of them were granted titles and titles.