Abolfazl Sabouri, Abolfazl Sabouri is based in New Zealand and has an MA in Jurisprudence and Islamic Studies. He is a graduate of Elmiyeh seminary in Qom with more than 15 years of study and research where he has... Answer updated 3 years ago

There is Hadith about it but with some Hadith we can't be sure that it is 100 percent true and Prophet really told that.

According to  authentic ahadith Imam Mahdi is from Ahlulbeit. It is in ahadith that he is son of Fatima (daughter of Prophet). 

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