36:9
وَجَعَلْنَا مِنۢ بَيْنِ أَيْدِيهِمْ سَدًّا وَمِنْ خَلْفِهِمْ سَدًّا فَأَغْشَيْنَـٰهُمْ فَهُمْ لَا يُبْصِرُونَ
wajaʿalnā min bayni aydīhim saddan wamin khalfihim saddan fa-aghshaynāhum fahum lā yub'ṣirūna
And We have put before them a barrier and behind them a barrier and covered them, so they do not see.
— Saheeh International
and set barriers before and behind them, blocking their vision: they cannot see.
— M. A. S. Abdel Haleem
And We have put a barrier before them, and a barrier behind them, and We have covered them up, so that they cannot see.
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali