瑜伽師地論略纂 3.20

3.20

Regarding "If you say they are different, does that manifestation lack a cause?" and so forth: this asks whether, when the effect becomes manifest, it has a cause or lacks a cause. If it lacks a cause, the formal inference is: "The phenomenon of the effect should have been manifest from the beginning; because manifestation lacks a cause; just like at the time of subsequent manifestation." Or: "It should not be manifest now; because manifestation lacks a cause; just like at the time when it was not yet manifest."