Vaiśeṣika Sūtra 2.2.29

2.2.29

guṇasya sato 'pavargaḥ karmabhiḥ sādharmyam |

guṇasya—of Attribute; sataḥ—being; apavargaḥ—speedy destruction; karmabhiḥ—with Actions; sādharmmyam—resemblance.

25. The resemblance (of Sound), although it is an Attribute, with Actions, consists in its speedy destruction.

‘Apavargaḥ’ means speedy destruction. And this, even in the case of Attribute-ness, is dependent upon the incidence of a rapidly appearing destroyer, in the same way as duality, etc., are. This constitutes only its resemblance to Actions, and not its Action-ness. The quality of undergoing rapid destruction which you (i.e., the objector) advance as as an argument, is not one-pointed i.e., multifarious, because it is found in Duality, Knowledge, Pleasure, Pain, etc., as well. This is the import.—25.