The yoga of knowledge, and the turning of Arjuna's grief
Bhagavad Gita 2.48
Source: verified public-domain translation.
Original text
योगस्थः कुरु कर्माणि सङ्गं त्यक्त्वा धनञ्जय । सिद्ध्यसिद्ध्योः समो भूत्वा समत्वं योग उच्यते ॥
Transliteration
yoga-sthaḥ kuru karmāṇi saṅgaṃ tyaktvā dhanañjaya | siddhy-asiddhyoḥ samo bhūtvā samatvaṃ yoga ucyate ||
Translation
“Perform action, O Dhananjaya, being steadfast in Yoga, abandoning attachment and balanced in success and failure. Evenness of mind is called Yoga.”
Translation · Swami Sivananda
Context
Immediately after 2.47. Yoga is defined here as samatva — evenness — not as posture. Success and failure are both included.