Bhagavad Gita Chapter 18.23
niyataḿ sańga-rahitam
arāga-dveṣataḥ kṛtam
aphala-prepsunā karma
yat tat sāttvikam ucyate
Translation
That action which is regulated and which is performed without attachment, without love or hatred, and without desire for fruitive results is said to be in the mode of goodness.