佛祖統紀 38.17

38.17

大平真君元年。寇謙之於嵩山立壇。為帝祈福。老君復降。授帝以太平真君之號。謙之以奏。遂改元大赦。

In the first year of Taipingzhenjun, Kou Qianzhi established an altar on Mount Song to pray for blessings on behalf of the emperor. Lord Lao descended again and conferred upon the emperor the title of Taiping Zhenjun (True Lord of Great Peace). Qianzhi memorialized this, and [the emperor] thereupon changed the reign era and proclaimed a general amnesty.