Bhagavad Gita Chapter 18.24
yat tu kāmepsunā karma
sāhańkāreṇa vā punaḥ
kriyate bahulāyāsaḿ
tad rājasam udāhṛtam
Translation
But action performed with great effort by one seeking to gratify his desires, and enacted from a sense of false ego, is called action in the mode of passion.