मनुस्मृति - दया

यो बन्धनवधक्लेशान् प्राणिनां न चकीर्षति ।
न सर्वस्य हितप्रेप्सुः सुखमत्यन्तमश्नुते ॥

- मनुस्मृति

He who does not trouble animals by tying (captivating), killing or any other way and wish good of all beings will live happily.

- Manu Smriti