Hassan ibn Thabit (Arabic: حسان بن ثابت ) (died 674) was an Arabian poet and one of the Sahaba, or companions of Muhammad. He was born in Yathrib (Medina), and was member of the Banu Khazraj tribe. After Mohammad's death, Hassan was supposed to have traveled east as far as China, preaching for Islam along with Sa`d ibn Abi Waqqas, Thabit ibn Qays, and Uwais al-Qarni.
According to Islamic tradition Hasaan lived for 120 years, sixty years before converting to Islam and another sixty thereafter. In his youth he traveled to Al-Hirah and Damascus, then settled in Medina, where, after Mohammad's arrival, he accepted Islam and wrote poems in his defense.
This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "". Encyclopædia Britannica (11th ed.). Cambridge University Press.