﴿ إِنَّكَ لَا تُسْمِعُ ٱلْمَوْتَىٰ وَلَا تُسْمِعُ ٱلصُّمَّ ٱلدُّعَآءَ إِذَا وَلَّوْا۟ مُدْبِرِينَ ﴾

“[But,] verily, thou canst not make the dead hear: and [so, too,] thou canst not make the deaf [of heart] hear this call when they turn their backs [on thee] and go away,”

Please check ayah 27:81 for complete tafsir.