《后汉书·列传·乌桓鲜卑列传》
当时辽东的鲜卑有六千多骑兵也入侵辽东和玄菟，乌桓校尉耿晔征调沿边各郡的部队和乌桓率众王出边塞进攻鲜卑，杀了几百人，获得大量的人口、牛、马和各种器物。鲜卑首领这才率领三万部众到辽东乞求投降。
时，辽东鲜卑六千余骑亦寇辽东玄菟，乌桓校尉耿晔发缘边诸郡兵及乌桓率众王出塞击之，斩首数百级，大获其生口、牛、马、什物，鲜卑乃率种众三万人诣辽东乞降。
At that time, the Xianbei of Liaodong also invaded Liaodong and Xuantu with more than six thousand cavalrymen. The Wuhuan Colonel Geng Ye recruited the troops of various counties along the border and the Wuhuan Leader to attack Xianbei out of Jibeisai, killed hundreds of people, and obtained a large number of people, cattle, horses, and various items. Only then did the Xianbei leader lead thirty thousand of his followers to Liaodong to beg for surrender.