大般涅槃經集解 50.14

50.14

案僧亮曰：行慈者，乃未始不益眾生。向舉施言因時之益，此修淨土是果時益也。僧宗曰：此中偏出願耳。亦如《維摩經》中為化眾生而取佛土也。寶亮曰：第四修淨佛土者，勸修行十善，除於十惡。若十善滿，眾惡永盡，功德圓備，至金剛心後無土之土，此為真淨。若降此以還，悉於形中辯淨。今菩薩發願修行此德，為接引下愚，示備善之基漸也。

Sengliang states: For one who practices loving-kindness, it has never been that they do not benefit sentient beings. Earlier, the mention of giving spoke of the benefit at the time of the cause; this cultivation of a pure land is the benefit at the time of the fruit. Sengzong states: Here, it specifically brings forth vows. It is also like in the Vimalakīrtinirdeśa Sūtra, where one takes a Buddha land for the sake of transforming sentient beings. Baoliang states: Regarding the fourth, 'cultivating the purification of Buddha lands': it encourages the cultivation of the ten virtues and the eradication of the ten non-virtues. If the ten virtues are complete, all evils are eternally extinguished, and merits are fully rounded, reaching the land of no land after the vajra-mind; this is true purity. Anything below this elucidates purity within form. Now, the bodhisattva makes vows to cultivate this virtue to receive and guide the inferior and foolish, showing the gradual foundation of fully equipping goodness.