Hazrat Mahdi (as) will prove Allah’s existence, creation, the universe, the Qur’an and the End Times using very strong evidence and none will have any counter-evidence to offer

Hazrat Mahdi (as) will tell people the existence of Allah, proofs of the universe and Creation with verses from the Qur’an.  He will explain and prove the events occurring in the End Times and none will have any counter-evidence to offer.

Sheikh al-Tusi’s Kitab al-Ghayba : “The dominion (authority) of Hazrat Mahdi (as) lies within the proofs about all that Allah has created; these are so numerous that his [Hazrat Mahdi’s (as)] proofs will overcome (will be influential, will be dominant) everyone and nobody will have any counter-propositions against him.” (Kitab al-Ghaybat, [Bihar al-Anwar, Vol. 51], Ansariyan Publications, Collected by: Muhammad Baqir al-Majlisi, Iran-Qum, 2003, p. 70)