فَاِنَّكَ لَا تُسۡمِعُ الۡمَوۡتٰي وَلَا تُسۡمِعُ الصُّمَّ الدُّعَآءَ اِذَا وَلَّوۡا مُدۡبِرِيۡنَ

So indeed, you will not make the dead hear, nor will you make the deaf hear the call when they turn their backs, retreating