tasya mātṛvivāhādikasya hetoḥ sutākhyādikāryadarśanād anumānapramāṇataḥsiddhatvāt tadanupalabdhir na siddheti na tadabhāvaprasaṅgaḥ /
[If you say] "Because that cause - the mother's marriage etc. - is established through the valid means of inference from seeing the effect named 'son' etc., there is no non-apprehension of it, hence there is no possibility of its absence."