大般涅槃經集解 51.10

51.10

案僧亮曰：別說四法義也。離十惡者，釋善知識常如善事。若我不生惡者，是如法而說而行者也。益我有二：如法說者，言益也。如法行者，不言之益也。有善法故，說益事轉深。為眾生者，是善不為非善也。僧宗曰：第三釋善知識義，略舉其德也。

Sengliang comments: This separately explains the meaning of the four dharmas. 'Abandoning the ten unwholesome actions' explains that a good friend always accords with good deeds. 'If I do not give rise to evil' refers to one who speaks and acts in accordance with the Dharma. Benefiting me has two aspects: speaking in accordance with the Dharma is verbal benefit; acting in accordance with the Dharma is non-verbal benefit. Because there are wholesome dharmas, the benefit spoken of becomes ever deeper. 'For the sake of sentient beings' means being good and not engaging in what is not good. Sengzong says: The third explains the meaning of a good friend, briefly presenting their virtues.