《北史·列传·卷二十九》
等到大举讨伐南陈，朝廷命他为行军元帅，率领船队直趋三硖。
及大举攻伐，以素为行军元帅，引舟师趣三硖。
When the army went to conquer the Southern Chen Dynasty, the imperial court appointed him as the commander-in-chief of the expedition, leading the fleet straight to Sanxia.