27:71
وَيَقُولُونَ مَتَىٰ هَـٰذَا ٱلْوَعْدُ إِن كُنتُمْ صَـٰدِقِينَ
wayaqūlūna matā hādhā l-waʿdu in kuntum ṣādiqīna
They also say, ‘When will this promise be fulfilled if what you say is true?’
And they (the disbelievers in the Oneness of Allâh) say: "When (will) this promise (be fulfilled), if you are truthful?"