Cakkavattisutta 17.8

17.8

Tesaṃ āyunāpi parihāyamānānaṃ vaṇṇenapi parihāyamānānaṃ pañcavassasahassāyukānaṃ manussānaṃ appekacce aḍḍhateyyavassasahassāyukā, appekacce dvevassasahassāyukā puttā ahesuṃ.

Those people who lived for 5,000 years had some children who lived for 2,500 years, while others lived for 2,000 years.