Quran 36:48

And they say: "When will this promise come to pass, if what you say is true?"

And they say, ‘When will this promise be fulfilled, should you be truthful?’

And they say, “When will this promise be fulfilled, if you are truthful?”

They also say, 'When shall this promise come to pass, if you speak truly?'

And they say, "When (is) this promise, if you are truthful?"

And they say: when will this promise be fulfilled if ye say sooth?

And they say: "When will this promise (i.e. Resurrection) be fulfilled, if you are truthful?"

They say: “When will this threat (of Resurrection) come to pass? Tell us if indeed you are truthful.”

The unbelievers say, "When will the Day of Judgment come if what you say is at all true?"

And they say: When will this threat come to pass, if you are truthful?

And they say: When will this promise be fulfilled, if ye are truthful?

They also say: 'When will this promise be, if what you say is true'

And they say, "When is this promise, if you should be truthful?"

And they say, “When will this promise be, if you are truthful?”

They say, "When will this promise be fulfilled, if you are truthful?"

Further, they say, "When will this promise (come to pass), if what ye say is true?"