《陈书·列传·卷十四》
周武帝又派他的弟弟卫国公宇文直率领部众驻在鲁山，又派他的柱国长胡公拓跋定的三万人马，围攻郢州。
周武又遣其弟卫国公宇文直率众屯鲁山，又遣其柱国长胡公拓跋定人马三万，攻围郢州。
Emperor Wu of Zhou also sent his younger brother Weigong Yuwen Zhi to lead troops and station in Lushan. He also sent his Pillar of State Changhu Gong Tuoba Ding with 30,000 troops to besiege Yingzhou.