《魏书·列传·卷八十五》
直侍的官员，都把马系在宫禁之内；休假的官吏，都留下来充当建筑的差役。
直侍之官，皆系马省中；休下之吏，留供土木之役。
The officials in attendance all tied their horses in the palace; officials on leave all stayed behind to serve as corvée laborers for the construction.