Sura al-Rūm 30:54

ٱللَّـهُ ٱلَّذِى خَلَقَكُم مِّن ضَعْفٍ ثُمَّ جَعَلَ مِنۢ بَعْدِ ضَعْفٍ قُوَّةً ثُمَّ جَعَلَ مِنۢ بَعْدِ قُوَّةٍ ضَعْفًا وَشَيْبَةً يَخْلُقُ مَا يَشَآءُ وَهُوَ ٱلْعَلِيمُ ٱلْقَدِيرُ

allāhu alladhī khalaqakum min ḍaʿfin thumma jaʿala min baʿdi ḍaʿfin quwwatan thumma jaʿala min baʿdi quwwatin ḍaʿfan wa-shaybatan yakhluqu mā yashāʾu wa-huwa l-ʿalīmu l-qadīru

It is Allah 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.