He wrote "Kuden-sho" and described that the teachings of the Jodo Shinshu sect were transferred by word of mouth from Honen to Shinran, from Shinran to his grandson Nyoshin, and from Nyoshin to Kakunyo.
『口伝鈔』を著し、浄土真宗の教えが、法然から親鸞、親鸞から孫の如信へ、如信から覚如に口伝されたとする。