《旧唐书·本纪·卷十四》
宪宗诏令五月初一日亲临宣政殿接受朝臣参拜祝贺的礼仪应当停止。
敕五月一日御殿受朝贺礼宜停。
Emperor Xianzong ordered that the ceremony in which he personally went to the Xuanzheng Hall to accept the greetings of his courtiers on the 1st day of May should be discontinued.