A part of his diary "Sogaki" (宗河記) remains, and some volumes of "Engishiki" (codes and procedures on national rites and prayers) which mention that it was written by him in the annotation, remain.
また、彼の日記『宗河記』の逸文が残されている他、『延喜式』の注釈の中にも彼を由来とするものが残されている。