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

“And, 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,”

And so you cannot make the dead hear nor can you make the deaf hear the call when read al-du‘ā’a idhā pronouncing both hamzas or by not pronouncing the second one that comes between it and the yā’ they go away with their backs turned.