National Treasures & Important Cultural Properties
of National Institutes for Cultural Heritage, Japan

In the following year after Enni returned from Grand Master Wuzhun (Bushunshiban) from the Jingshan (Kinzan) area in China, during February 1242 (the 2nd year of the Chunyou or Junyuu era), the Jingshan Wanshou (Kinzan Manju) Temple burnt down. After establishing the Temple of Jyôten-ji in Hakata as the Head Monk, Enni, who received the notice of the temple went up in flames, helped with the reconstruction of the temple in gratitude. With the help from the then major merchant Sha-Kokumei, who was active in trading between Japan and China, Enni sent off 1000 pieces of timber as reconstruction materials. In return, Grand Master Wuzhun sent a letter to Enni to express his gratitude – the letter has been termed "itawatashi-no-bokuseki" (writing on the passing of timber) and is highly valued (a national treasure, owned by the Tokyo National Museum).
This letter itself was written by Unchô Tokufu (who served under Grand Master Wuzhun) and addressed to Enni for the reconstruction assistance. Not much is known about Unchô Tokufu, although it can be presumed that he was responsible for various duties within Jingshan Temple. Of the 1000 pieces of timber, 530 pieces were received, 330 pieces were to arrive in the year of Qingyuan (Keigen) and the remaining 140 pieces were yet to be received. This was consistent with the numbers written in "itawatashi-no-bokuseki." This work is of great importance as it records various events during the temple reconstruction, including events that have not been described in the "itawatashi-no-bokuseki."