It was an commentary given to "Muryoju-kyo Ubadaisha Ganshoge (the Verses on the Aspiration to Be Born in the Pure Land)", also known as Jodoron (the Treatise on the Pure Land Sutra), which was compiled by Seshin (Vasubandhu).
『無量寿経優婆提舎願生偈（浄土論）』（世親〈婆藪般豆〉撰述）に註解を加えた書。