《隋书·帝纪·卷一》
十月初九，高祖任命上柱国杨素为信州总管，朔州总管吐万绪为徐州总管。
冬十月壬辰，以上柱国杨素为信州总管，朔州总管吐万绪为徐州总管。
On the ninth day of the tenth month, the founding Emperor appointed Yang Su, a pillar of the state, as the general manager of Xuzhou, and Tu Wanxu, the general manager of Shuozhou, as the general manager of Xuzhou.