《资治通鉴·隋纪·隋纪四》
突厥人曾进犯边塞，文帝派杨谅抵御突厥人，他被突厥人打败，他属下的将帅因罪被解职除名的有八十余人，都被发配流放到岭表。
突厥尝寇边，高祖使谅御之，为突厥所败；其所领将帅坐除解者八十馀人，皆配防岭表。
The Turks had invaded the border fortresses, Emperor Wen sent Yang Liang to resist the Turks, he was defeated by the Turks, more than eighty of the generals and commanders under him were relieved of their posts and dismissed, and they were all exiled to Lingbiao.