Quran 72:9 — The Jinn (Al-Jinn)

"We used to sit there in order to spy. Anyone who listens is pursued by a powerful projectile.

[72:8] "We touched the heaven and found it filled with formidable guards and projectiles.

[72:10] "We have no idea if something bad is intended for the inhabitants of Earth, or if their Lord wills to redeem them.