Muslim b. ʿAqīl b. Abī Ṭālib (مسلم بن عقیل بن ابي طالب), cousin of Imam al-Husayn (a) and one of his companions in his movement against Yazid b. Mu'awiya. He was martyred before the day of 'Ashura in Kufa. Imam al-Husayn (a) received numerous letters form the people of Kufa inviting him to the city, he sent Muslim to Kufa as his representative to see if the conditions are ready for his presence and if the people are really supporting him. According to a report, 27 days before his martyrdom, Muslim wrote a letter to Imam al-Husayn (a) and informed him that the people are ready and waiting for you. However, after that 'Ubayd Allah b. Ziyad was appointed as the governor of Kufa and because people were afraid of him, they suddenly left Muslim alone. Thus, he was arrested and martyred in the day of 'Arafa (Dhu l-Hijja 9), 60 (September 13, 680).