《旧唐书·本纪·卷十七》
十四日，宰臣等百官上表请皇上主持国事，经三次上表，皇帝才同意。
丁未，宰臣百僚上表请听政，三表，许之。
On the 14th, the prime minister and the hundred officials submitted a memorial requesting the Emperor to preside over national affairs. After three memorials, the Emperor agreed.