Abbas Qummi said:
An account of the Tawwabeen (Penitents)
When Imam Husain (a.s) was martyred and (Ubaydullah) Ibne Ziyad returned from Nukhaylah to Kufa, the Shi’ah disputed with one another in reproach and repentance. They realised their great sin that they invited Imam Husain (a.s) and later withdrew their hands from assisting and complying him, while he was killed in their very neighborhood.
Source: “NAFASUL MAHMOOM Relating to the heart rending tragedy of Karbala” By Haj Shaikh Abbas Qummi p 447.