अत्रिसंहिता - दया

परस्मिन् बंधुवर्गे वा मित्रे द्वेष्ये रिपौ तथा ।
आत्मवद्वर्तितव्यं हि दयैषा परिकीर्तिता ॥

- अत्रिसंहिता

He who treats everyone like himself can be called as compassionate. The word 'everyone' includes strangers, relatives, friends, those who hate him and enemies

- Atri samhita