《宋书·列传·卷八十六》
大明初年，北魏人侵略青州，孝武帝派殷孝祖北上增援，接受青州刺史颜师伯的指挥，多次和敌人交锋，常常大败敌人，此事可参见《颜师伯传》。
大明初，索虏寇青州，上遣孝祖北援，受刺史颜师伯节度，累与虏战，频大破之，事在师伯传。
At the beginning of the Great Ming era, the northern Wei invaded Qingzhou, and Emperor Xiaowu sent Yin Xiaozu to go north to reinforce the troops, and accept the command of the Governor of Qingzhou Yan Shibo. He clashed with the enemy many times, and often badly defeated the enemy. This can be referred to in the Biography of Yan Shibo.