《旧唐书·列传·卷二十三》
当时隋炀帝召集各郡儒学官吏到东都洛阳，命令他们与国子监的秘书学士一起论辩经学中的问题。
时炀帝征诸郡儒官集于东都，令国子秘书学士与之论难，颖达为最。
At that time, the Sui Yang Emperor summoned the Confucian officials from various prefectures to the eastern capital of Luoyang and ordered them to debate topics in classical studies with the secretaries and scholars of the Imperial College.