大乘起信論廣釋卷第三．四．五 5.17

5.17

論。若人修行至如法故　釋曰。此顯善行順真如也。既遍一切法中。亦非一行而能隨順。染從無明起。善從真如流。若修善行。遣妄順真故。修善法自歸真也。此中所言一切善者。即是自利利他行也。故新論云。要當集一切善行。普救一切眾生。離客塵垢。然後方能顯現真法。

[Treatise:] If a person cultivates [… down to:] because it accords with the Dharma.
[Commentary:] This reveals that good practices accord with tathatā. Since [tathatā] is omnipresent throughout all phenomena, it is likewise not by a single practice that one can accord with it. Defilement arises from avidyā, whereas goodness flows from tathatā. If one cultivates good practices, they dispel delusion and accord with the real; therefore, cultivating wholesome dharmas naturally returns one to the real. What is spoken of here as 'all goodness' refers specifically to the practices of benefiting oneself and benefiting others. Thus, the new translation of the treatise states: 'One must gather all good practices to rescue all sentient beings universally, leave behind the defilements of adventitious dust, and only thereafter be able to reveal and manifest the real Dharma.'