御注金剛般若波羅蜜經宣演 2.105

2.105

經。須菩提至如來說是沙　演曰。下明智淨。前之見淨鑒照於境。此隨彼起決擇。有情心行差別。染與非染倒與非倒皆悉了知。令彼彼心離諸散亂證真境故名智淨住。論云。為應知中證故安立見為教。彼彼眾生寂靜心故安立智。演曰。見為令知智為利益故。彼論不分見與智別。但由五眼見彼眾生種種心住。即是前明能見之智。後明所見之境。是故頌云。諸佛五種實以見彼顛倒。餘同此論。文分為三。初舉智所緣境。次明佛能知。後徵釋。所以初中有四。初因河辨沙。二依沙數界。三因界說生。四依生說心。此初也。先問後答。如來依俗有此言說故。說是沙善現知心故說如是。

Sūtra: “Subhūti, [...] the Tathāgata speaks of as sand?”
Exposition: Below clarifies the purity of knowledge. The preceding purity of vision illuminates objects; this, arising subsequent to that, discerns the distinctions in the mental activities of sentient beings. Whether defiled or undefiled, inverted or non-inverted, all are fully known, so that each and every mind may be freed from scattered distraction and realize the true realm; hence it is called the dwelling of the purity of knowledge. The commentary says: "To realize within what should be known, vision is established as teaching; to pacify the minds of those respective sentient beings, knowledge is established." Exposition: Vision is to make them know; knowledge is to bring benefit. That commentary does not divide vision and knowledge as distinct; it is merely that through the five eyes one sees the manifold mental abidings of those sentient beings. That is to say, the former clarifies the knowledge that can see, and the latter clarifies the objects seen. Therefore the verse says: "The Buddhas' five kinds are real, because they see those inversions." The rest is the same as this commentary. The text is divided into three: first, adducing the objective support of knowledge; second, explaining that the Buddha is able to know; third, querying and explaining the reason. In the first there are four: first, identifying sand through the river; second, counting realms according to the sand; third, speaking of sentient beings according to the realms; fourth, speaking of minds according to sentient beings. This is the first. First the question, then the answer. The Tathāgata makes this statement based on convention, and therefore speaks of it as sand; Subhūti, knowing his intention, speaks in this manner.