Mahabharata 12.161.28

नाकामः कामयत्यर्थं नाकामो धर्ममिच्छतिनाकामः कामयानोऽस्ति तस्मात्कामो विशिष्यते

nākāmaḥ kāmayatyarthaṃ nākāmo dharmamicchatinākāmaḥ kāmayāno'sti tasmātkāmo viśiṣyate

Our plain-language meaning of this verse is waiting for scholar review.