Bhagavad Gita · 18.34

यया तु धर्मकामार्थान्धृत्या धारयतेऽर्जुन।प्रसङ्गेन फलाकाङ्क्षी धृतिः सा पार्थ राजसी॥

yayā tu dharma-kāmārthān dhṛityā dhārayate 'rjuna prasaṅgena phalākāṅkṣhī dhṛitiḥ sā pārtha rājasī

But that determination, O Arjuna, by which one holds fast to duty, pleasure, and wealth, with attachment and desire for fruits — that determination is rajasic.

— Bhagavad Gita 18.34

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)