“It is Allah Who created you in a state of weakness, and after weakness gave strength; then, after strength, caused weakness and old age. He creates what He pleases. He is the All-knowing, the All-Powerful.” (Chapter 30 verse 55)
This verse also clearly proves the death of Hazrat Isa(as). It provides us with clear evidence that a human being is bound to the laws of nature and that every creation is subject to the degree stated in this verse. He is first in a state of weakness, and then given strength, and after that given weakness again and old age. Then after that one dies. This is the cycle for every human being and Isa(As) is not excluded from these laws of Allah.