Dhammapada · 25.16

Tatrāyamādi bhavati, idha paññassa bhikkhuno;Indriyagutti santuṭṭhī, pātimokkhe ca saṃvaro.

Tatrayamadi bhavati, idha pannassa bhikkhuno; Indriyagutti santutthi, patimokkhe ca samvaro.

This is the beginning here for the wise bhikkhu: guarding of the senses, contentment, and restraint in the patimokkha (the monastic code).

— Dhammapada 25.16

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.