Though it is said that he wrote books including 100 volumes of "Ruijuhanshu" (collection of similar objects) and a volume of "Ruijuritsuryokeikanmondosiki" (collection of code officers' dialogue and journal), they no longer remain.
他にも『類聚判集』100巻・『類聚律令刑官問答私記』1巻などの著書があったとされるが、現在に伝わっていない。