Hassan b. Thabit was born in Yathrib (al-Madinah) in 562 or 563 A.D., approximately eight years before the birth of the Holy Prophet Mohammad. He belongs to Bani al-Najjar, a branch of Khazraj which is an important tribe in Yathrib. He lived 120 years; 60 years of his life passed in pre-Islamic (Jahiliyyah) period, the rest of it in Islamic period. He had an incredible capability of composing poetry. This capability that he allocated to his tribe and some monarchs was reserved by him to the Holy Prophet. He gained the appreciation of the Holy Prophet by this attitude and as a result, a private pulpit was reserved to him by the Prophet’s order in the Prophetic mosque. His poetry has an important role in parrying the molestations directed to the Prophet and Believers around him. As a result of his poems the moral advantage passed to Muslims’ side. Therefore the Prophet praised him. He enlightened the history of his time, because he composed the poetry about majority of events that happened in his Islamic life. Hassan b. Thabit who was called as the Prophet’s Poet for these properties died in the period of Muawiyah’s caliphate. It is under dispute when he died. However, the majority of the savants assume that he died in 54 A.H.