3 verses have
sky
in Edition Clear Qur'an by Talal Itani / Al-Furqaan (The Criterion)

25:25The Day when the sky is cleft with clouds, and the angels are sent down in streams.

25:48And it is He who sends the winds, bringing advance news of His mercy; and We send down from the sky pure water.

25:61Blessed is He who placed constellations in the sky, and placed in it a lamp, and an illuminating moon.