The Jinmyocho (list of deities) in the Engishiki (codes and procedures on national rites and prayers) contains the passage, 'our deities of Kasuga-matsuri Festival in the village of Yamamura in Soekami County, Yamato Province.'
延喜式神名帳には「大和国添上郡春日祭神四座」と記載されている。