俱舍論記 15.26

15.26

「彼言不爾至性不同故」者，別發家救。彼云：不爾。以諸有情死此生彼，前、後性等有增有減。若能生不能，可言能類減，以能類少故。不能類增，以不能類多故。若不能生能，可言不能類減，以不能類少故。能類增，以能類多故。草等先、後生、枯性別，可總發戒，無增、減過，不得為例。

"They say this is not so […] because their natures are not the same" is the defense of the masters who hold individual generation. They say: It is not so. Because sentient beings die here and are born there, their former and subsequent natures are equal, having increase and decrease. If [a being within one's] capacity is reborn as [one beyond one's] capacity, one can say that the class within one's capacity decreases, because the class within one's capacity becomes fewer; the class beyond one's capacity increases, because the class beyond one's capacity becomes greater. If [a being beyond one's] capacity is reborn as [one within one's] capacity, one can say that the class beyond one's capacity decreases, because the class beyond one's capacity becomes fewer; the class within one's capacity increases, because the class within one's capacity becomes greater. The growth and withering of grass and the like before and after are of different natures, so a precept can be generated collectively without the fault of increase and decrease; it cannot be taken as an analogy.