Dhammapada · 12.6

Yassa accantadussīlyaṃ, māluvā sālamivotataṃ;Karoti so tathattānaṃ, yathā naṃ icchatī diso.

Yassa accantadussilyam, maluva salamivotatam; Karoti so tathattanam, yatha nam icchati diso.

One whose immorality is extreme — like the māluvā creeper that engulfs a sal tree — does to himself what an enemy would wish to do to him.

— Dhammapada 12.6

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.