yat tat sāttvikam ucyate
niyatam—regulative; saṅga-rahitam—without attachment; arāga-dveṣataḥ—without love or hatred; kṛtam—done; aphala-prepsunā—without fruitive result; karma—acts; yat—that which; tat—that; sāttvikam—in the mode of goodness; ucyate—is called.
As for actions, that action in accordance with duty, which is performed without attachment, without love or hate, by one who has renounced fruitive results, is called action in the mode of goodness.
Regulated occupational duties, as prescribed in the scriptures in terms of the different orders and divisions of society, performed without attachment or proprietary rights and therefore without any love or hatred and performed in Kṛṣṇa consciousness for the satisfaction of the Supreme, without self-satisfaction or self-gratification, are called actions in the mode of goodness.
Link to this page: https://prabhupadabooks.com/bg/18/23