Dhammapada · 2.3

Te jhāyino sātatikā, niccaṃ daḷhaparakkamā;Phusanti dhīrā nibbānaṃ, yogakkhemaṃ anuttaraṃ.

te jhayino satatika, niccam dalhaparakkama; phusanti dhira nibbanam, yogakkhemam anuttaram.

The meditators, persevering, forever firm in exertion — those steadfast ones touch Nibbāna, the supreme security from bondage.

— Dhammapada 2.3

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.