《新五代史·列传·唐臣传第十六》
豆卢革、韦说二人各自都任他们的儿子做拾遣，父子同在一个省，人们认为木对，于是改任别的官职，因而豆卢革任韦说的儿子为弘文馆学士，韦说任豆卢革的儿子为集贤院学士。
二人各以其子为拾遗，父子同省，人以为非，遽改佗官，而革以说子为弘文馆学士，说以革子为集贤院学士。
Doulu Ge and Wei Yao each arranged for their son to assist them as advisors, the father and son would share the same duties in one province, people thought it was not proper, and so they changed to different titles. That is how Doulu Ge arranged for Wei Yao’s son to become a scholar in the Academy of Chinese Classics and Wei Yao arranged for Doulu Ge’s son to become a scholar in the Imperial Academy.