tasya vivāhasyābhāve tathā vivāhitabhartrā ca saha suratopabhogābhāve 'pikasyāścid duṣṭayoṣitaḥ parapuruṣasaṅgatyā sutākhyaṃ kāryamupalabhyate tadvad bhavatu māturapi syād ityādityasiddham anumānam, tataś ca bhavato jārajātatvaprasaṅgo durnivāraḥ /
Even in the absence of that marriage, and in the absence of conjugal relations with a married husband, the effect named 'son' is observed in the case of some wicked woman through association with another man, and similarly it could be the case with [your] mother too - thus the inference is unestablished, and consequently the possibility of your being illegitimately born is difficult to avoid.