The Dale jingang bukong zhenshi sanmeiye jing banruoboluomiduo liqushi; 2 fasc. （T 1003.18.607-617）， tr. Amoghavajra 不空， abbr. Rishushaku 理趣释. Foremost East Asian commentary on the symbolism and significance of the Rishukyo^ 理趣经. Japanese commentaries: T 2240， T 2241. See Gelfman （1979） for a study and English translation.