《旧唐书·本纪·卷十四》
元和二年正月初一，宪宗亲临太清宫、太庙举行献祭。
二年春正月己丑朔，上亲献太清宫、太庙。
On the first day of the first month of the second year of Yuanhe, Emperor Xianzong personally went to the Taiching Palace and Taimiao to make sacrifices.