《资治通鉴·宋纪·宋纪十四》
北魏的尉元，派遣孔伯恭率步、骑兵一万人，抗拒刘宋北伐军沈攸之，把正月战役中俘虏的双脚冻烂、只能用膝盖爬行的沈攸之的部属送还给沈攸之，用以打击他的士气。
魏尉元遣孔伯恭帅步骑一万拒沈攸之，又以攸之前败所丧士卒瘃堕膝行者悉还攸之，以沮其气。
Wei Yuan of the Northern Wei Dynasty sent Kong Bogong to lead ten thousand infantry and cavalry to resist Liu Song's Northern Expeditionary Army led by Shen Youzhi. He sent the captives from the January battle who had frozen feet and could only crawl on their knees back to Shen Youzhi in order to打击 his morale.