Is it permissible for us to inquire and ponder about what has been concealed from us regarding the existence of other universes besides our own world?

There is no benefit in inquiring about the existence of universes other than this one, because it is a question about what is hidden from us and does not benefit us in our religion or our worldly life. It is considered delving into the unseen without scientific evidence, and Allah Almighty has forbidden following what we have no knowledge of, saying: "And do not pursue that of which you have no knowledge." Furthermore, the Prophet, peace and blessings be upon him, said: "From the excellence of a person's Islam is his leaving alone that which does not concern him." Therefore, a Muslim should focus on what benefits him in his religion and his worldly life.