Because the author must have been a person well versed in Chinese classics and waka poetry, there is a theory that the author was MINAMOTO no Mitsuyuki, the majority of opinion is doubtful of this view due to a discrepancy with his career.
作者は漢籍や和歌の道に通じた人物であることから、源光行を作者とする説もあるが、その経歴と齟齬することから、懐疑的な見方が大勢を占めている。