《魏书·列传·卷十九》
如果是诏令，应当派遣官吏，怎能差遣私家奴仆索要皇帝的羽林，于烈的头可以得到，羽林却不能得到! 
若是诏，应遣官人，所由遣私奴索官家羽林，烈头可得，羽林不可得！ 
If it is an imperial decree, an official should have been sent. How can you ask for the emperor’s Yulin Army by sending a private servant? Yu Lie’s head can be given, but Yulin Army can’t!