16:84
وَيَوْمَ نَبْعَثُ مِن كُلِّ أُمَّةٍ شَهِيدًا ثُمَّ لَا يُؤْذَنُ لِلَّذِينَ كَفَرُوا۟ وَلَا هُمْ يُسْتَعْتَبُونَ
wayawma nabʿathu min kulli ummatin shahīdan thumma lā yu'dhanu lilladhīna kafarū walā hum yus'taʿtabūna
The day will come when We raise up a witness from every community, when the disbelievers will not be allowed to make excuses or amends.
And (remember) the Day when We shall raise up from each nation a witness (their Messenger), then, those who disbelieved will not be given leave (to put forward excuses), nor will they be allowed (to return to the world) to repent and ask for Allâh’s Forgiveness (of their sins).