《北史·列传·卷五十七》
渭州人郑五丑叛乱，与背叛西魏的羌人傍乞铁匆相呼应，朝廷命赵刚前往镇压。
渭州人郑五丑构逆，与叛羌傍乞铁勿相应。令刚往镇之。
Zheng Wuchou, a man from Weizhou, rebelled and coordinated with the Qiang traitor Pangqitiefeng, so the court ordered Zhao Gang to lead troops to suppress them.