Imam Hasan (A.S.) the Leader of the youth in Heaven was born in the holy city of Medina on 15th Ramadhan in third year after Hijrah. He was one of the two persons in whom the progeny of the Holy Prophet of Islam (S.A.W.) was limited. He was one of the four persons through whom the Holy Prophet of Islam (S.A.W.) made the contest of prayer (Mubahila) with the Christians of Najran.
