The Patna Dharmapada 73

73

36 Dhp392
yamhi dhammaṃ vijāneyā sammasaṃbuddhadeśitaṃ |
tam eva apacāyeyā aggihotraṃ va brāhmaṇo ||

36 (Dhp 392)
From whomsoever one might understand the dharma taught by the fully enlightened Buddha, / one should venerate him, as a brahmin does the sacrificial fire.