Bhagavad Gita 5.3

ज्ञेय: स नित्यसंन्यासी यो न द्वेष्टि न काङ क्षति |
निर्द्वंद्वो हि महाबाहो सुखं बंधात्प्रमुच्यते

Translation

The karm yogis, who neither desire nor hate anything, should be considered always renounced. Free from all dualities, they are easily liberated from the bonds of material energy.