Don't be happy and speak on the killers of Al-Imam Al-Hussein, maybe there are more from this society who claim their belongingness to Al-Hussein and they will fight Al-Imam Al-Mahdi and in the same time they will be killers to Al-Imam Al-Hussein
So the one who wants to save should follow Al-Hussein in his steps and deeds
By Allah the person who wants to integrate and join with Al-Imam Al-Mahdi will not be succeeded if he doesn't follow Al-Hussein in his deeds