2 verses have
sky
in Edition Clear Qur'an by Talal Itani / Al-Kahf (The Cave)

18:40Perhaps my Lord will give me something better than your garden, and release upon it thunderbolts from the sky, so it becomes barren waste.

18:45And cite for them the parable of the present life: it is like water that We send down from the sky; the plants of the earth absorb it; but then it becomes debris, scattered by the wind. God has absolute power over everything.