Dhammapada · 18.21

Ākāse va padaṃ natthi, samaṇo natthi bāhire;Saṅkhārā sassatā natthi, natthi buddhānamiñjitaṃ.

Akase va padam natthi, samano natthi bahire; Sankhara sassata natthi, natthi buddhanaminjitam.

There is no path in the sky; there is no recluse outside the Dhamma. No conditioned thing is eternal; in the Buddhas there is no wavering.

— Dhammapada 18.21

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.