Sankhya Yoga — Sankhya Yoga
सुखदुःखे समे कृत्वा लाभालाभौ जयाजयौ । ततो युद्धाय युज्यस्व नैवं पापमवाप्स्यसि ॥ २.३८ ॥
sukha-duḥkhe same kṛtvā lābhālābhau jayājayau | tato yuddhāya yujyasva naivaṁ pāpam avāpsyasi || 2.38 ||
Holding pleasure and pain, gain and loss, victory and defeat as equal, engage in battle; thus you shall not incur sin.
Treating pleasure and pain, gain and loss, victory and defeat alike, engage in battle; thus you shall not incur sin.