27:80
إِنَّكَ لَا تُسْمِعُ ٱلْمَوْتَىٰ وَلَا تُسْمِعُ ٱلصُّمَّ ٱلدُّعَآءَ إِذَا وَلَّوْا۟ مُدْبِرِينَ
innaka lā tus'miʿu l-mawtā walā tus'miʿu l-ṣuma l-duʿāa idhā wallaw mud'birīna
You cannot make the dead hear, you cannot make the deaf listen to your call when they turn their backs and leave,
Verily, you cannot make the dead to hear nor can you make the deaf to hear the call (i.e. benefit them and similarly the disbelievers), when they flee, turning their backs.