Yusuf Ali
They say: "When will this promise come to pass, if ye are telling the truth?"

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

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

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

محمد جالندھری
اور کہتے ہیں کہ اگر تم سچے ہو تو (جس عذاب کا) یہ وعید (ہے وہ) کب (آئے گا)؟