The longest reply was from Sayyidinal Husayn.
The longest reply was from Sayyidinal Husayn.” On receiving these replies, Muawiya instructed his governor, once more, to put “severe pressure on them to make them comply . The governor did so, but with no success,” says Sheikh A. S. Farsy (page 24). He, therefore, advised Muawiya to go to Medina to meet them personally. Muawiya went to Medina and “after resting, he met secretly with each one of them separately, so that they should not give him one reply unanimously,” says Sheikh A. S.
Farsy (page 25). The first one he talked to was Imam Husayn a. s. “He told him, ‘My son! Do not create division in the community of your grandfather. Every one is satisfied that Yazid should succeed me as the Caliph. There are no opponents to this except you and those whom you lead.