Palokasutta
Atha kho aññataro brāhmaṇamahāsālo yena bhagavā tenupasaṅkami …pe… ekamantaṁ nisinno kho so brāhmaṇamahāsālo bhagavantaṁ etadavoca: “sutaṁ metaṁ, bho gotama, pubbakānaṁ brāhmaṇānaṁ vuddhānaṁ mahallakānaṁ ācariyapācariyānaṁ bhāsamānānaṁ: ‘pubbe sudaṁ ayaṁ loko avīci maññe phuṭo ahosi manussehi, kukkuṭasaṁpātikā gāmanigamarājadhāniyo’ti. Ko nu kho, bho gotama, hetu ko paccayo yenetarahi manussānaṁ khayo hoti, tanuttaṁ paññāyati, gāmāpi agāmā honti, nigamāpi anigamā honti, nagarāpi anagarā honti, janapadāpi ajanapadā hontī”ti?
Breaking Apart
Then a certain well-to-do brahmin went up to the Buddha, and seated to one side he said to him: “Worthy Gotama, I have heard that brahmins of the past who were elderly and senior, the tutors of tutors, said: ‘In the old days this world was so full of humans you’d think they were squashed together. The villages, towns, and capital cities were no more than a chicken’s flight apart.’ What is the cause, worthy Gotama, what is the reason why these days human numbers have dwindled, a decline in population is evident, and whole villages, towns, cities, and countries have disappeared?”