Imam al-Husayn chose Muslim ibn 'Aqil, son of his uncle and the husband of his sister Ruqayyah, to take back the reply to the letters of the people of Kufah.
Muslim ibn 'Aqil together with his companions set off for Kufah and arrived there on the 5th Shawwal, 60 A.H. Muslim ibn 'Aqil stayed at the house of Mukhtar ibn Abi 'Ubaydah Thaqafi, better known as the house of Salim ibn Musayyib. In another account given by Tabari, he stayed at the house of Muslim ibn 'Awsajah. A large number of the Shi'ah gathered at the house and Muslim ibn 'Aqil read to them the letter of the Imam. Upon hearing the contents of the letter, they wept. The letter read: "In the name of Allah, the Merciful, the Compassionate, from al-Husayn ibn 'Ali to the Muslim believers. Hani' and Sa'id have conveyed your letters to me. These were your last messengers to me.