《资治通鉴·隋纪·隋纪三》
梁毗恳切地说： 杨素依恃陛下的信任，任意使用权力，率领群下时，对人无缘无故地杀害。
毘极言 素擅宠弄权，将领之处，杀戮无道。
Liang Pi said earnestly: "Yang Su relies on Your Majesty's trust to exercise power arbitrarily. When he leads the group down, he kills people without reason.