Allah decreed the destinies of the creatures fifty thousand years before He created the heavens and the earth

The Prophet (may Allah's peace and blessings be upon him) says that Allah decreed the future destinies of the creatures in detail, including life, death, sustenance, and so on in the Preserved Tablet fifty thousand years before He created the heavens and the earth - and these will take place according to Allah's decree. Everything that comes into being, is so according to Allah's decree and predestination.

So, whatever befalls a person would not have missed him, and whatever misses him would not have befallen him.