yathā vahnyādayaḥ śītādīnām apare na tathāvidhāḥ nāpakarṣahetavaḥ tadyathā ta eva vahnyādayo dhūmādīnām /
For example, fire and such things [are causes of decrease] for cold and such things, while others are not of this kind - [they are] not causes of diminution - for example, those very [things] like fire [are not causes of decrease] for smoke and such things.