Sura al-Ḥajj 22:7

وَأَنَّ ٱلسَّاعَةَ ءَاتِيَةٌ لَّا رَيْبَ فِيهَا وَأَنَّ ٱللَّـهَ يَبْعَثُ مَن فِى ٱلْقُبُورِ

wa-anna l-sāʿata ātiyatun lā rayba fīhā wa-anna allāha yabʿathu man fī l-qubūri

And verily the Hour will come: there can be no doubt about it, or about (the fact) that Allah will raise up all who are in the graves.