Quran 54:50

And Our command is but one, like a glance of the eye.

— Saheeh International

when We ordain something it happens at once, in the blink of an eye;

— M. A. S. Abdel Haleem

And Our Commandment is but one as the twinkling of an eye.

— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali