大方廣佛華嚴經隨疏演義鈔 44.26

44.26

疏「或各配屬」下，上即通釋，故或一因成四河等。今此別配，言同體悲加，故即以他佛外加為大悲河因。「二見心性故」，即第二自藏離礙故。自藏即如來藏性，此即心性能觀心性名為上定，故為三昧河因。「三諸度圓故」，即第三所照法圓，故為波羅蜜河因。「四二智圓滿故」，即第四能照智具，故為願智河因。一切智是根本智，重言智者即後得智，後得智攝願故。

On the commentary passage beginning "Or by matching them respectively": the above was a general explanation, so either a single cause produces the four rivers and so forth. Now, matching them individually: saying 'empowerment by compassion of identical substance', it therefore takes external empowerment by other buddhas as the cause of the river of great compassion. "Second, because of seeing mind-nature": this is because the second, one's own matrix, is free from obstruction. One's own matrix is the tathāgatagarbha nature; this is mind-nature being able to contemplate mind-nature, called supreme samādhi, hence the cause of the river of samādhi. "Third, because the pāramitās are complete": this is because the third, the dharmas illuminated, is complete, hence the cause of the river of pāramitās. "Fourth, because the two wisdoms are fulfilled": this is because the fourth, the illuminating wisdom, is complete, hence the cause of the river of vows and wisdom. All-knowledge is fundamental wisdom; mentioning "wisdom" again refers to subsequent wisdom, because subsequent wisdom subsumes vows.