Then we can see that how is it possible to answer the above triple questions.

Then we can see that how is it possible to answer the above triple questions. At the beginning, it should be considered that rational reason can never point a specific person about this matter, but the results of these reasons are always general.

Narratives of Sunnis about Mahdi are usually general; they only talk about “a person from the dynasty of prophet with laghab of Mahdi and the name of Muhammad (like the name of prophet of Islam)”; except some narratives which quote all characteristics of his father or forefathers and is compatible with Shiites belief, like the two following narratives: “Sheikh Suleiman al-Qunduzi”, who is one of Sunni scholars, quotes in famous book of “Yanabi al-Muwadda” from the book “Fara'id al-Simtayn” from Ibn Abbas that a Jewish man went to Prophet (S) and asked many questions and after hearing the answers, the light of belief shined in his heart and became Muslim; including: “Who is your successor?

Because any prophet should have a successor, as our prophet Moses (as) placed Joshua as his successor”.

Prophet (S) answered this question: انّ وصیّی علیّ بن ابی طالب و بعده سبطای الحسن و الحسین تتلوه تسعة ائمّة من صلب الحسین My successor is Ali ibn Abi Talib and after him my grandsons Hassan and Hussein and after Hussein, nine Imams from his generation Jewish man asked Prophet (S) to say their names; Prophet (S) said: When Hussein dies his one Ali; and when Ali dies his son Muhammad; and when Muhammad dies his son Ja’far, and when Ja’far dies his son Musa, and when Musa dies his son Ali, and When Ali dies his son Muhammad, and when Muhammad dies his son Ali, and when Ali dies his son Hassan and when Hassan dies his son Muhammad al-Mahdi al-Hujjah will be his successor; they are twelve persons (my successors) … Then he asked from the condition of their death and martyrdom and Prophet (S) said after some explanations: و انّ الثّانی عشر من ولدی یغیب حتّی لا یری، و یأتی علی امّتی بزمن لایبقی من الاسلام الّا اسمه؛ و لایبقی من القرآن الّا رسمه فحینئذ یأذن الله تبارک و تعالی له بالخروج فیظهر الله الاسلام به و یجدّده ...