The Bahai faith is a fairly new faith begun by Abdul Baha, who is the son of Bahaullah the theology is named after. It arose with a revolutionary called Shiraz who called himself the Bab, which means doorway, gateway, opening for an entrance from one place to another. Anyway, he inherited certain beliefs that existed in the Shii theology since he is from Iran.
Anyway, to cut things short, their theology is based on Bahaullah who is Abdul Baha's father being the coming Mahdi, Who is only mentioned in some hadith coming from the Al Thalitha (Salisa) hadith which means other party or third party hadith, and the Qaim, which is not Quranic. I just mentioned that because you are believing in the Quranic Islamic theology.
This is a whole other topic sis. Its a huge topic.