Cundasutta
Evaṁ me sutaṁ— ekaṁ samayaṁ bhagavā pāvāyaṁ viharati cundassa kammāraputtassa ambavane. Atha kho cundo kammāraputto yena bhagavā tenupasaṅkami; upasaṅkamitvā bhagavantaṁ abhivādetvā ekamantaṁ nisīdi. Ekamantaṁ nisinnaṁ kho cundaṁ kammāraputtaṁ bhagavā etadavoca: “kassa no tvaṁ, cunda, soceyyāni rocesī”ti? “Brāhmaṇā, bhante, pacchābhūmakā kamaṇḍalukā sevālamālikā aggiparicārikā udakorohakā soceyyāni paññapenti; tesāhaṁ soceyyāni rocemī”ti.
With Cunda
So I have heard. At one time the Buddha was staying near Pāvā in Cunda the smith’s mango grove. Then Cunda the smith went to the Buddha, bowed, and sat down to one side. The Buddha said to him, “Cunda, whose purity do you believe in?” “Sir, I believe in the purity advocated by the western brahmins garlanded with aquatic flowers who carry pitchers, serve the sacred flame, and immerse themselves in water.”