وَجَعَلْنَا مِنْۢ بَيْنِ اَيْدِيْهِمْ سَدًّا وَّمِنْ خَلْفِهِمْ سَدًّا فَاَغْشَيْنٰهُمْ فَهُمْ لَا يُبْصِرُوْنَ ( يس: ٩ )
Wa ja'alnaa mim baini aydeehim saddanw-wa min khalfihim saddan fa aghshai naahum fahum laa yubsiroon (Yāʾ Sīn 36:9)
And We have put before them a barrier and behind them a barrier and covered them, so they do not see. (Ya-Sin  : 9)
1 Mufti Taqi Usmani
And We have placed a barrier in front of them and a barrier behind them, and (thus) they are encircled by Us; so they do not see.