維摩經略疏垂裕記 9.81

9.81

二、明起無量心利物，二：初、敘意分科。二、隨文釋義，四：初、慈，二：初、問。「則有為」等者，有為分段，無為方便，自體果報即三土眾生，故云三種眾生也。

Second, explaining the arising of the immeasurable minds to benefit beings, in two parts: first, stating the purport and dividing the sections; second, explaining the meaning following the text, in four parts: first, loving-kindness (maitrī), in two: first, the question. Regarding "Then conditioned," etc.: conditioned refers to fragmented [birth and death]; unconditioned refers to expedient [birth and death]; their fundamental fruit-retributions are the sentient beings of the three lands, hence called "three kinds of sentient beings."