athavā bhāvikatve 'pi śvamāṃsādivaśādime jāyante 'śucayo bhāvā naiva nityā ajanmataḥ
Or even if [uncleanness] were real, things become unclean due to [contact with] dog's flesh and so forth, [but] eternal [entities] never [become unclean] because they cannot be born [i.e., undergo change]