﴿ وَمَآ أَمْرُنَآ إِلَّا وَٰحِدَةٌۭ كَلَمْحٍۭ بِٱلْبَصَرِ ﴾

“and Our ordaining [a thing and its coming into being] is but one [act], like the twinkling of an eye.”

And Our command for a thing which We want to bring into existence is but a single word like the twinkling of an eye in terms of speed and this is the saying of kun ‘Be’ whereat it comes into existence. His command when He wills a thing is just to say to it ‘Be’ and it is Q. 3682.