The Kofukuji dotodaimei and Imperial Princess Ito's prayer in Sanjujo Sasshi (30 sliding doors) by Kukai were thought to be written by Hayanari, but this has not been verified.
その中で、空海の三十帖策子の一部分、興福寺銅灯台銘、伊都内親王願文が逸勢の筆とされているが確証はない。