9وَجَعَلنا مِن بَينِ أَيديهِم سَدًّا وَمِن خَلفِهِم سَدًّا فَأَغشَيناهُم فَهُم لا يُبصِرونَHilali & KhanAnd We have put a barrier before them, and a barrier behind them, and We have covered them up, so that they cannot see.