“Abu ‘Abdillah (a.s.), has said, ‘When al-Husayn ibn Ali (a.s.) was hit with the sword and his head fell, and they were about to sever his head, an announcer announced from the depth of the Throne, “O straying nation in confusion after its Prophet, Allah will not unite you in al-Adha’ and in al-Fitr!” He (the narrator) said that abu ‘Abdillah (a.s.) then said, ‘Thereafter, by Allah, they did not unite and will not unite until the avenger of al-Husayn (a.s.) takes revenge.”