36:9
وَجَعَلْنَا مِنۢ بَيْنِ أَيْدِيهِمْ سَدًّۭا وَمِنْ خَلْفِهِمْ سَدًّۭا فَأَغْشَيْنَٰهُمْ فَهُمْ لَا يُبْصِرُونَ
Wa ja'alnaa mim baini aydeehim saddanw-wa min khalfihim saddan fa aghshai naahum fahum laa yubsiroon
and We have put a barrier before them and a barrier behind them, and have covered them up, so they are unable to see.
