Also, when it was copied certain additions and revisions were made; consequently, there were many mistakes in writing and pages out of order due to an error in binding, and there were 21 different versions of the manuscript during the Kamakura period.
また、筆写の際に文の追加・改訂が行われ、書き間違い、錯簡も多く、鎌倉時代には21種の版があったとされる。