Chapter 18 · Liberation through Renunciation · Krishna said
Bhagavad Gita 18.2 — Defining the two
श्रीभगवानुवाच। काम्यानां कर्मणां न्यासं संन्यासं कवयो विदुः। सर्वकर्मफलत्यागं प्राहुस्त्यागं विचक्षणाः ॥
śrībhagavānuvāca | kāmyānāṃ karmaṇāṃ nyāsaṃ saṃnyāsaṃ kavayo viduḥ | sarvakarmaphalatyāgaṃ prāhustyāgaṃ vicakṣaṇāḥ ||
Meaning
Krishna says: The wise call giving up actions driven by desire 'sannyasa', and the learned call giving up the fruits of all actions 'tyaga'.