《旧唐书·本纪·卷六》
证圣元年春一月，皇上加尊号曰慈氏越古金轮圣神皇帝，大赦天下，改元，特许民间大宴饮七天。
证圣元年春一月，上加尊号曰慈氏越古金轮圣神皇帝，大赦天下，改元，大酺七日。
In the first month in the spring of the first year of Zhengsheng, the emperor assumed the title Benevolent Sage God Emperor of Ancient Golden Wheel, granted a general amnesty, changed the era name, and granted permission for seven days of feasts and drinking.