the Holy Qur'an

It is God who creates you and takes your souls at death; and of you there are some who are sent back to a feeble age, so that they know nothing after having known (much): for God is All-Knowing, All-Powerful. (16:70)

O mankind! if ye have a doubt about the Resurrection, (consider) that We created you out of dust, then out of sperm, then out of a leech-like clot, then out of a morsel of flesh, partly formed and partly unformed, in order that We may manifest (our power) to you; and We cause whom We will to rest in the wombs for an appointed term, then do We bring you out as babes, then (foster you) that ye may reach your age of full strength; and some of you are called to die, and some are sent back to the feeblest old age, so that they know nothing after having known (much), and (further), thou seest the earth barren and lifeless, but when We pour down rain on it, it is stirred (to life), it swells, and it puts forth every kind of beautiful growth (in pairs). (22:5)

It is God Who created you in a state of (helpless) weakness, then gave (you) strength after weakness, then, after strength, gave (you weakness and a hoary head: He creates as He wills, and it is He Who has all knowledge and power. (30:54)

If We grant long life to any, We cause him to be reversed in nature: Will they not then understand? (36:68)

End of Quotes