<p style='text-align: justify;'>This is a work of the commentaries on Shaku makaenron 釈摩訶衍論 by the Buddhist scholar Fa Wu 法悟 (12th century), written on the request of the Emperor Tian You 天佑 of Kara-Khitan (Western Liao, 西遼). Shaku makaenron is itself a work of commentaries on the Daijō kishinron 大乗起信論 (a treatise on awakening faith in the Mahāyāna) which is a Chinese translation of a work by Aśvaghoşa.</p><p style='text-align: justify;'>Shaku makaenron san gensho 釈摩訶衍論賛玄疏 was introduced into Japan through Korea in 1105. This particular edition was printed at the Mount Kōya (高野山) in 1288 and it is called the Kōya edition (Kōya-ban, 高野版).</p><p style='text-align: justify;'>This is the fourth volume of five and the second oldest printed material in our Japanese Collection.</p>