Dhammapada · 26.11
Na jaṭāhi na gottena, na jaccā hoti brāhmaṇo;Yamhi saccañca dhammo ca, so sucī so ca brāhmaṇo.
Na jatahi na gottena, na jacca hoti brahmano; Yamhi saccanca dhammo ca, so suci so ca brahmano.
Not by matted hair, nor by clan, nor by birth does one become a brahmin. In whom there is truth and Dhamma, he is the pure one; he is the brahmin.
— Dhammapada 26.11
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.