仁王護國般若波羅蜜多經疏 1.212

1.212

解曰：明佛大悲平等濟護，若唯外護利樂不均，念外答內顯悲深普，不請而說也。又若唯外，事相雖嚴，內不澄清，心疾寧念？外嚴內潔，相應義故。又外因內方得無災，三毒不除三災必起，藉內護外，故先明也。又內外言，約二相說：法唯一味平等無差，故佛大悲曾無異說，由悟不悟、修與不修、深淺次第，理必然故。善男子者，波斯匿等。吾今已下，明所護人。護佛果者，即此品也。護十地行，即後品也。先果後因，欣趣次第，義如前說。能所護者，能護之法則唯般若，所護之者依經分二：聖凡二人、淨穢二土。從此第四勅令諦聽。

Commentary: This clarifies the Buddha's great compassion in rescuing and protecting impartially. If there were only the external protection, benefit and joy would not be equal; by attending to the external and answering with the internal, his compassion is shown to be deep and universal, speaking without being asked. Furthermore, if there were only the external, though external matters were adornments, if the internal were not clear and pure, how could mental afflictions be quelled? It is because external adornment and internal purity correspond in meaning. Moreover, it is only through the internal that the external can be free from calamities; if the three poisons are not eradicated, the three disasters will inevitably arise. Because the external protection relies on the internal, it is explained first. Furthermore, "internal" and "external" are spoken in terms of two characteristics: the Dharma is of solely one flavor, equal and without differentiation, and so the Buddha's great compassion has never had different teachings; yet according to awakening or non-awakening, cultivation or non-cultivation, and the progression of depth, the principle is necessarily so. "Good sons" refers to Prasenajit and the others. From "I shall now" downward clarifies the persons who are protected. "Protection of the buddha-fruition" refers to this chapter. "Protection of the ten bhūmi practices" refers to the subsequent chapter. Putting the fruition first and the cause second is the sequence of aspiring and proceeding, whose meaning is as stated before. As for that which protects and that which is protected: the dharma that can protect is solely prajñā; that which is protected, according to the sūtra, is divided into two: the two persons, noble and ordinary, and the two lands, pure and defiled. Next is the fourth [part], commanding them to listen attentively.