《旧唐书·列传·卷八十五》
唐德宗过生日，皇太子献上佛像，唐德宗令韦执谊写了篇画像赞，又命太子赐给韦执谊绢绸作为答谢。
德宗载诞日，皇太子献佛像，德宗命执谊为画像赞，上令太子赐执谊缣帛以酬之。
On Emperor Dezong’s birthday, the crown prince offered a Buddha statue, and Emperor Dezong ordered Wei Zhiyi to write an eulogy on the portrait and ordered the crown prince to reward Wei Zhiyi with silk as a thank you.