Ya Sin, 48 Ayah
36:48
وَيَقُولُونَ مَتَىٰ هَٰذَا ٱلۡوَعۡدُ إِن كُنتُمۡ صَٰدِقِينَ ٤٨
Wa Yaqūlūna Matá Hādhā Al-Wa`du 'In Kuntum Şādiqīna
And they say, "When is this promise, if you should be truthful?"