The Strongest...

Surah Fussilat (41:9-12)

Tell them (O Prophet): "Do you indeed disbelieve in He who created the earth in two days and attribute to Him equals? That is the Lord of the worlds."

(After creating the earth) He set up firm mountains on it, blessed it, and provided it with sustenance in proportion to the needs of all who seek (sustenance).All this was done in four days.

Then He turned to the heaven while it was all smoke. He said to the heaven and the earth: "Come (into being), willingly or unwillingly." They said: "Here we come (into being) in willing obeisance."

Then He made them seven heavens in two days and revealed to each heaven its law. And We adorned the lower heaven with lamps, and firmly secured it. All this is the firm plan of the All-Mighty, the All-Knowing.