36:68 wa man nu'Am-mirhu nunak-kis'hu fiyl khalq* afalaa ya'Åqiluun

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Ahmed Raza Khan: Mohammed Aqib Qadri:
And whomever We bring to an old age, We reverse him in creation; so do they not understand?

Yusuf Ali:
If We grant long life to any, We cause him to be reversed in nature: Will they not then understand?

Pickthal:
He whom we bring unto old age, We reverse him in creation (making him go back to weakness after strength). Have ye then no sense?