《资治通鉴·唐纪·唐纪二十》
东魏国寺和尚法明等撰写《大云经》四卷，上奏表将书进献，书中说太后是弥勒佛降生，当取代唐朝作为人间的主宰。太后下令将它颁布于天下。
东魏国寺僧法明等撰《大云经》四卷，表上之，言太后乃弥勒佛下生，当代唐为阎浮提主；制颁于天下。
The Eastern Wei state's priest Fa Ming (法明) et al. wrote the four-volume Great Cloud Sutra (大云经), and the memorial to present the book stated that the empress dowager was the reincarnation of the Maitreya Buddha and should replace the Tang Dynasty as the ruler of the human world. The empress dowager ordered it to be distributed throughout the country.