The Johyobun (memorial to the Emperor), which is said to have been written by Kukai, is called the "Rimohitsu hoken hyo Document," and kept as a national treasure at Daigo-ji Temple.
その際、空海が書いたと伝えられる上表文が『狸毛筆奉献表』であり、醍醐寺に国宝として現存する。