وَيَقُولُونَ مَتَىٰ هَٰذَا ٱلۡوَعۡدُ إِن كُنتُمۡ صَٰدِقِينَ
Wayaqooloona mata hatha alwaAAdu in kuntum sadiqeena
And they say, "When is this promise, if you should be truthful