Bhagavad Gita 12.13
He who is incapable of hatred towards any being, who is kind and compassionate, free from selfishness, without pride, equable in pleasure and pain, and forgiving—
अद्वेष्टा सर्वभूतानां मैत्रः करुण एव च।निर्ममो निरहङ्कारः समदुःखसुखः क्षमी॥adveṣṭā sarvabhūtānāṃ maitraḥ karuṇa eva ca|nirmamo nirahaṅkāraḥ samaduḥkhasukhaḥ kṣamī||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).