Question: Is there an Aayah (Qur’aanic verse) or Hadeeth which states that there are seven earths? It is a controversial issue among us. If so, in which Soorah of the Qur’aan or in which Hadeeth is this stated? May Allaah reward you the best.
Answer: It is authentically established in the Glorious Qur’aan that Allaah the Exalted created seven earths, just like He created seven heavens, as Allaah the Exalted says (what means): It is Allaah Who has created seven heavens and of the earth the like thereof (i.e. seven). His Command descends between them (heavens and earth), that you may know that Allaah has power over all things, and that Allaah surrounds all things in (His) Knowledge. (Al-Talaaq, 65:12)… read more here.