(Al-Hajj) 22 : 7
وَأَنَّ السَّاعَةَ آتِيَةٌ لَا رَيْبَ فِيهَا وَأَنَّ اللَّهَ يَبْعَثُ مَنْ فِي الْقُبُورِ
And indeed the Hour will come, and there is no doubt about it, and indeed Lord Allah will resurrect who is in the graves.
It is told in verse 43: 61: “Indeed, the second coming of Jesus is the Knowledge of the Last Hour, so you don’t be in doubt about it, and you follow Me, this is the Straightpath”. See explanation 4: 159; 6: 158 and 7: 187.