因明入正理論疏 3.28

3.28

Question: 'The subject "existence" and the reason "possessing one substance" are unrelated; why is this not unestablished for both parties (ubhayāsiddha)?' Answer: 'The subject "existence" is the possessing nature of substance, quality, and action; and the reason "possessing one substance" means being able to possess each individual substance; therefore, it is a property of the subject (pakṣadharmatā), so there is no fault of being unestablished for both. This category "not substance" having formed one thesis, in the latter two theses, "not quality" and "not action", the predicate and the subject are as before. The reasons for these two say: "because it possesses quality and action", meaning being able to possess that quality and that action, just as saying "possessing form" also has the meaning of pertenence.'