Nika Sojo documents were robbed by the army of Katsuyori TAKEDA and were transmitted as being lost in the disturbance by TAKEDA, and books were wrote about the story of Nika Sojo's loss by Nichiga and others in Hota Myohon-ji Temple, but there is a record stating that Ieyasu TOKUGAWA read the Nika Sojo thirty years after the disturbance.
二箇相承書は武田勝頼軍によって奪われ、武田の兵乱によって失われたと伝承され、保田妙本寺の日我等が二箇相承紛失の顛末を著しているが、その30年後に徳川家康が拝したとの記録がある。