Surah Al-Hajj 22:7
وَأَنَّ ٱلسَّاعَةَ ءَاتِيَةٌ لَّا رَيْبَ فِيهَا وَأَنَّ ٱللَّهَ يَبْعَثُ مَن فِى ٱلْقُبُورِ ٧
EnglishSahih International
And [that they may know] that the Hour is coming - no doubt about it - and that Allah will resurrect those in the graves.