Shoshin Nenbutsuge' is a Gemon (poetic writing in Buddhism, usually honoring its principles and Buddha) included at the end of 'Gyo no maki' in "Ken jodo shinjitsu kyogyosho monrui" (Selected passages revealing the true teaching, practice and attainment of the Pure Land), written by Shinran.
「正信念仏偈（しょうしんねんぶつげ）〈正信念佛偈〉」は、親鸞の著書『顕浄土真実教行証文類』の「行巻」の末尾に所収の偈文。