Therefore be patient; surely the promise of Allah is true and let not those who have no certainty hold you in light estimation.

And when it was said, Surely the promise of Allah is true and as for the hour, there is no doubt about it, you said: We do not know what the hour is; we do not think (that it will come to pass) save a passing thought, and we are not at all sure.

Most surely this is a certain truth.

And most surely it is the true certainty