Digha Nikaya (Coleção dos Discursos Longos) 2:173
SUJATOYā tesaṁ tesaṁ sattānaṁ tamhi tamhi sattanikāye jarā jīraṇatā khaṇḍiccaṁ pāliccaṁ valittacatā āyuno saṁhāni indriyānaṁ paripāko,
The old age, decrepitude, broken teeth, grey hair, wrinkly skin, diminished vitality, and failing faculties of the various sentient beings in the various orders of sentient beings.