佛祖統紀 39.52

39.52

五月。勅先朝忌辰並於章敬寺設齋行香。永為定式○七月。詔京城諸郡僧道。七日七夜轉經行道。為民祈福以保秋成。每歲正月七月視此為式。

In the fifth month, an imperial order decreed that on the death anniversaries of previous reigns, vegetarian feasts and the offering of incense should be held at Zhangjing Monastery, to serve forever as a fixed rule. In the seventh month, an edict ordered monks and Daoists of the capital and various commanderies to recite sūtras and practice the Way for seven days and seven nights, praying for blessings for the people so as to secure the autumn harvest. Every year in the first month and seventh month, this was to be taken as the standard model.