《周书·本纪·卷二》
九月，齐神武包围玉壁，大都督韦孝宽尽力抵御，齐神武围攻六十天未能占领，其士卒死者十之二三。
九月，齐神武围玉壁，大都督韦孝宽力战拒守，齐神武攻围六旬不能下，其士卒死者什二三。
In the 9th month, Emporer Shenwu of Northern Qi surrounded Yubi. Wei Xiaokuan, the Grand General, resisted with all his might. Northern Qi troops besieged the city for 60 days but failed to conquer it. About 123 percent of their soldiers died in the battle.