Dhammapada · 6.4
Dhammapīti sukhaṃ seti, vippasannena cetasā;Ariyappavedite dhamme, sadā ramati paṇḍito.
Dhammapiti sukham seti, vippasannena cetasa; Ariyappavedite dhamme, sada ramati pandito.
One who drinks the Dhamma sleeps happily with a serene mind. The wise ever delight in the Dhamma revealed by the Noble Ones.
— Dhammapada 6.4
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.