Hadhrat Muslim (a) was the nephew of Imam ‘Ali (a). Imam al-Husayn (a) chose to send Hadhrat Muslim (a) (his cousin) to Kufah as his representative because he was one of the strongest men among the Banu Hashim.  Despite being about the same age as Imam al-Husayn (a), he followed the instructions given to him by the Imam (a) without any questions. Indeed, Hadhrat Muslim (a) was a model of obedience.