《资治通鉴·梁纪·梁纪十三》
在丞相府，宇文泰将苏绰一直留到晚上，就一些军政大事征求苏绰的意见，苏绰讲述，宇文泰躺着倾听。
遂留绰至夜，问以政事，卧而听之。
In the Prime Minister's Mansion, Yu Wentai kept Su Zuo there until evening. He sought Su Zuo's opinions on some important military and political matters. Su Zuo explained them, and Yu Wentai lay and listened.