The Bee - 16:70
And Allah created you, then He ends your life. Some of you are made to live until the worst time of life so that they may not know anything after knowledge. Allah is All-Knowing, All-Powerful.
The worst time of life:
The Romans/30:54
Allah created you weak, and after weakness He gave you strength, and after strength He gave you weakness and gray hairs. He creates whom He wills. He is All-Knowing, All-Powerful.
Yaseen/36:68
Whomsoever We give long life, We reverse his creation. Do you not understand?
Mary/19:4
"Lord,"he said, "the bones in my body have become loose, and my head is gray and burning. In supplication to you, Lord, I have never despaired."
The Stories/28:23
"When he reached the water of Median, he found there a group of people watering their cattle. Behind them he saw two women being pushed and shoved. He said to them, "What do you want to do?""We cannot water until the shepherds water and leave. Our father is a very old man."
The Family Of Imran/3:40
"When he said, "My Lord, how can I have a son when I am old and my wife is barren?", he said, "Yes, but Allah does what He wills"."
Prophet Hud/11:72
"Woe to me,"she said, "am I to bear a child while I am an old woman and my husband is an old man? This is a very strange thing!"
The Scatterers/51:28
"He felt fear from them. So they said, "Do not be afraid"and gave him the glad tidings of a wise son."
The Scatterers/51:29
"His wife, amazed, struck him on the face and said, "A barren old woman!"