大般涅槃經義記 9.234

9.234

自下第四舉果類破酪是乳果，舉之類乳。句別有四：一舉果正類，「若言乳中定有酪者，酪中亦應定有乳性」。二責其因緣，「若俱相有，何因緣故乳中生酪、酪不出乳」。三以無因緣證酪本無，「若無因緣」使彼酪果不出於乳，酪自不出，是即酪中無其乳性。酪既無乳、乳亦無酪，「當知是酪本無今有」。四「是故」下，結是異非。是乳生酪無酪性故，智者當知乳非有酪亦非無酪。

From here below, the fourth [part] refutes by adducing the category of fruit: curd is the fruit of milk; adducing it draws an analogy to milk. There are four distinct clauses: First, directly drawing an analogy from the fruit: "If one says that curd definitely exists in milk, then the nature of milk should also definitely exist in curd." Second, pressing for its causes and conditions: "If both mutually exist, for what cause and condition does milk produce curd, but curd does not yield milk?" Third, proving that curd is originally non-existent based on the absence of conditions: If there are no causes and conditions that prevent that fruit of curd from yielding milk, and curd of itself does not yield it, then curd lacks the nature of milk. Since curd lacks milk and milk also lacks curd, "one should know that this curd is originally non-existent and now existent." Fourth, from "Therefore" below, concludes what is right and distinguishes what is wrong. Because this milk produces curd without the nature of curd, the wise should know that milk neither has curd nor lacks curd.