《北史·列传·卷二》
周朝的使者元伟来齐，写了一篇《述行赋》，叙述郑庄公克段以后，把母亲姜氏改迎出来的故事。
周使元伟来聘，作《述行赋》，叙郑庄公克段而迁姜氏。
Envoy Yuan Wei of Zhou came to Qi and wrote <Narrative of a Trip>, which recorded the story of Duke Zhuang of Zheng escorting his mother Jiang back after defeating Duan.