Ya-Sin 36:48. Juz 23, page 443.
وَيَقُولُونَ مَتَىٰ هَـٰذَا ٱلْوَعْدُ إِن كُنتُمْ صَـٰدِقِينَ٤٨
And they say: When will this promise be fulfilled, if ye are truthful?
Ya-Sin 36:48, translated by Marmaduke Pickthall