heaven protected against devils

وَلَقَدْ جَعَلْنَا فِى ٱلسَّمَآءِ بُرُوجًا وَزَيَّنَّـٰهَا لِلنَّـٰظِرِينَ

We have set constellations up in the sky and made it beautiful for all to see,

وَحَفِظْنَـٰهَا مِن كُلِّ شَيْطَـٰنٍ رَّجِيمٍ

and guarded it from every stoned satan:

إِلَّا مَنِ ٱسْتَرَقَ ٱلسَّمْعَ فَأَتْبَعَهُۥ شِهَابٌ مُّبِينٌ

any eavesdropper will be pursued by a clearly visible flame.