"The Kohon Setsuwashu" is a narrative collection and is believed to have appeared during the end of the Heian period, or at the latest, during the early Kamakura period.
古本説話集（こほんせつわしゅう）は、平安時代末期か、遅くとも鎌倉時代初期には成立したと見られる説話集。