《资治通鉴·唐纪·唐纪三十》
太常博士王上疏请求建立青帝坛祭祀春神以迎接春天，玄宗准许。
太常博士王玙上疏请立青帝坛以迎春；从之。
The Doctor of the Imperial Academy, Wang Shang, submitted a memorial requesting that an Altar to the Azure Emperor be built to sacrifice to the god of spring to welcome spring, and Xuanzong approved this.