Yōga Sūtra 2.35

अहिंसाप्रतिष्ठायां तत्सन्निधौ वैरत्यागः।

ahiṁsāpratiṣṭhāyāṁ tatsannidhau vairatyāgaḥ।

[अहिंसा प्रतिष्ठायां तत् सन्निधौ वैर त्यागः।
ahiṁsā = non-violence; pratiṣṭhāyāṁ = when firmly established; tat = in its; sannidhau = presence; vaira = hatred; tyāgaḥ = is given up;]

When non-violence is firmly established, in its presence hatred is given up.