Dhammapada · 10.3

Sukhakāmāni bhūtāni, yo daṇḍena vihiṃsati;Attano sukhamesāno, pecca so na labhate sukhaṃ.

Sukhakamani bhutani, yo dandena vihimsati; Attano sukhamesano, pecca so na labhate sukham.

One who, seeking his own happiness, harms beings desiring happiness — that one does not obtain happiness hereafter.

— Dhammapada 10.3

Source: Pali text from the Khuddaka Nikāya of the Pali Canon (oldest extant Buddhist scripture, compiled c. 3rd century BCE). Public-domain English readings drawn from F. Max Müller's translation in Sacred Books of the East, Vol X (1881) and the Buddhist Publication Society's freely-licensed Acharya Buddharakkhita rendering.