Verse 51

أَوْ خَلْقًا مِّمَّا يَكْبُرُ فِى صُدُورِكُمْ فَسَيَقُولُونَ مَن يُعِيدُنَا قُلِ ٱلَّذِى فَطَرَكُمْ أَوَّلَ مَرَّةٍ فَسَيُنْغِضُونَ إِلَيْكَ رُءُوسَهُمْ وَيَقُولُونَ مَتَىٰ هُوَ قُلْ عَسَىٰٓ أَن يَكُونَ قَرِيبًا

Or a creation that you cannot even fathom in your mind. Then they will say who is bringing us back? Say, the One who initiated you the first time. Then they shake their heads at you and they say when would that be? Say, it may be very soon.