He who is able to do what He wills as He wills.
“Set forth to them the similitude of the life of this world: it is like the rain which We send down from the skies: the earth’s vegetation absorbs it. But soon
it becomes dry stubble, which the winds do scatter: IT IS (ONLY) ALLAH WHO PREVAILS OVER ALL
THINGS. Wealth and sons are allurements of the life of this world; but the things that endure, Good Deeds, are best in the sight of thy Lord, as rewards, and best as (the foundation for) hopes.”
(18:45-46) The Holy Quran

From the root q-d-r with the classical Arabic connotations: to measure something, know the measure of something to distribute, allot or apportion the suitable measure to decree, to ordain, to decide a matter (as though measuring it to fit) to exercise thought in preparing something.
Allah’s supreme power determines and delivers the suitable measure of all things. His decisions always prevail. He has power and ability to ordain all things.
He is empowered to do whatever wisdom decides. He has the power and ability to
decide the outcome of all matters.
His power enforces all decrees and ordains the course of all affairs. His decree
prevails in every situation.
