Dhammapada · 22.5

Apuññalābho ca gatī ca pāpikā, bhītassa bhītāya ratī ca thokikā;Rājā ca daṇḍaṃ garukaṃ paṇeti, tasmā naro paradāraṃ na seve.

Apunnalabho ca gati ca papika, bhitassa bhitaya rati ca thokika; Raja ca dandam garukam paneti, tasma naro paradaram na seve.

The accumulation of demerit, a bad destination, the brief pleasure of the frightened with the frightened, and the king's heavy punishment — therefore let no man approach another's wife.

— Dhammapada 22.5

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.