金光明最勝王經疏 3.314

3.314

贊曰：得利他樂。一為眾生住壽、二為說法、三斷煩惱。眾苦流，即惑業苦三。此斷所緣縛，所緣縛盡，能緣貪等皆亦隨滅，即斷能緣縛。既離諸縛，故得安樂。

The Commentary says: Obtaining the bliss of benefiting others. First, remaining in life for sentient beings; second, preaching the Dharma; third, severing afflictions. 'The stream of manifold sufferings' refers to the three: defilements, karma, and suffering. This severs the bondage to cognitive objects; when the bondage to cognitive objects is exhausted, the grasping subjects—greed and the like—are also extinguished in succession, which is severing the bondage to the grasping subject. Having departed from all bondages, one thus attains peace and bliss.