Bhagavad Gita 18.2
Lord Shri Krishna replied: The sages say that renunciation is forgoing an action that springs from desire, and relinquishing is the surrender of its fruit.
श्री भगवानुवाच
काम्यानां कर्मणां न्यासं संन्यासं कवयो विदुः।
सर्वकर्मफलत्यागं प्राहुस्त्यागं विचक्षणाः॥śrī bhagavānuvāca
kāmyānāṃ karmaṇāṃ nyāsaṃ saṃnyāsaṃ kavayo viduḥ|
sarvakarmaphalatyāgaṃ prāhustyāgaṃ vicakṣaṇāḥ||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).