《左传·哀公·哀公三年》
子服景伯来到，命令宰人拿出礼书，让他等候命令。如果不能尽职，就要按规定处罚。
子服景伯至，命宰人出礼书，以待命，命不共，有常刑。
Zi Fu Jing Bo came, and ordered the Zai Ren to bring out the ritual books, and to await orders. If he fails in his duty, he will be punished by law.