瑜伽論記 2.296

2.296

若用宿作為因者，汝先所說，由勤精進吐舊業故者，此中意說一切惡因皆是宿作，何故說言現在新業由不作因之所害等，新亦作惡，非唯宿作，量云：現在惡因於此身有，能招苦惡因攝故，如宿惡因。

Under "If one takes past deeds as the cause, what you said earlier about expelling old karma by diligent exertion...": the intention here is to say that if all evil causes were past deeds, why would you say that present new karma is damaged by the cause of non-action, and so on? Present [deeds] also create evil, and it is not only past deeds [that do so]. The syllogism is: A present evil cause exists in this body, because it is subsumed under evil causes capable of bringing about suffering, just like a past evil cause.