"Nihon genho zenaku ryoiki" (set of three books of Buddhist stories, written in the late 8th and early 9th century, usually referred to as the Nihon Ryouiki) describes the site of Prince Shotoku's residence and the place of Tojiko's residence.
『日本現報善悪霊異記』に太子の居住跡・刀自古の居住地とも見られる記述がある。