Anguttara Nikaya (Coleção dos Discursos Numerados) 1:12
SUJATOTassa taṁ ṭhānaṁ abhiṇhaṁ paccavekkhato yo yobbane yobbanamado so sabbaso vā pahīyati tanu vā pana hoti.
Reviewing this subject often, they entirely give up the vanity of youth, or at least reduce it.