kāryavyatiriktasya śakyākhyasya padārthāntarasya bhāvābhyupagamāt / tathā hi yadevāvirbhūtaṃ viśiṣṭarasavīryavipākādiguṇopetaṃ rūpaṃ tadeva dadhyādikaṃ kāryamucyate /
Because [you would be] admitting the existence of another entity called potency distinct from the effect. For what becomes manifested as a form endowed with specific qualities resulting from the development of particular taste and potency - that alone is called an effect like curd etc.