2 verses have
sky
in Edition Clear Qur'an by Talal Itani / Ghafir (The Forgiver)

40:13It is He who shows you His wonders, and sends down sustenance from the sky for you. But none pays heed except the repentant.

40:64It is God who made the earth a habitat for you, and the sky a structure. And He designed you, and designed you well; and He provided you with the good things. Such is God, your Lord; so Blessed is God, Lord of the Worlds.