Ichimai Kishomon (The One Sheet Document) (一枚起請文)
The Ichimai Kishomon is a will left by Honen on February 27, 1212 just prior to his death. It is ordinarily entitled Honen Shonin Goikun Ichimai Kishomon.
The original can be seen at Konkaikomyo-ji Temple. It is displayed to the public during the anniversary of Honen's death on April 23 and 24.