《后汉书·列传·乌桓鲜卑列传》
以后偏何连年出兵进攻北方的敌虏，回军时总是拿了敌人的首级到辽东接受赏赐。
其后偏何连岁出兵击北虏，还辄持首级诣辽东受赏赐。
Afterward, Pi He led troops in attacking the enemy in the north year after year. When he returned from battle, he would take the heads of the enemy to Liaodong and receive a reward.