《新唐书·列传·卷一百四十一》
吐蕃还请求《五经》，皇帝命秘书抄写赐与，并派工部李詗前往礼聘，赐物以万计。
又请《五经》，敕秘书写赐，并遣工部尚书李往聘，赐物万计。
Tufan also requested the "Five Classics". The emperor ordered the secretary to copy and give it, and sent Li Zhan from the Ministry of Industry to pay a courtesy call, with tens of thousands of gifts.