《旧唐书·本纪·卷十六》
二月初五，任命中书侍郎、平章政事段文昌为检校刑部尚书、同平章事、成都尹，充任剑南西川节度使。任命朝散大夫、尚书户部侍郎、知制诰、翰林学士、上柱国、建安县开国男杜元颖暂署本职、中书门下同平章事。
壬申，以中书侍郎、平章事段文昌检校刑部尚书、同平章事、成都尹，充剑南西川节度等使，以朝散大夫、尚书户部侍郎、知制诰、翰林学士、上柱国、建安县开国男杜元颖守本官、同中书门下平章事。
On February 5th, Duan Wenchang, the Minister of the Ministry of Books and Minister of Political Affairs, was appointed as the Deputy Minister of the Criminal Department, Tong Pingzhangshi, and Chengdu Yin, and served as the Jiedu Envoy of Xichuan, Jiannan. Du Yuanying, Chao San大夫, Assistant Minister of the Ministry of Household, Knower of 制诰, Hanlin Bachelor, Shangzhu Kingdom, and Duke of Jian'an County was appointed temporarily to take charge of his original post and as a political officer in the same rank at the Menxia in the Ministry of Books.