They invited Husayn so as to render assistance to them and...

They invited Husayn so as to render assistance to them and straighten their affairs, and aid them against his enemies, and renew the peculiarities of Islam. And when he came to them, they rebelled against him and killed him. Then they told him to pledge allegiance at the hands of the lewd and accursed son of Ziyad and submit to his ideologies. But he exalted honorable death upon the life of degradation.

May Allah bless Husayn, and may He humiliate his murderer, and also curse those who executed his orders, and those who remained satisfied with it. Then after what they have done with Abu Abdullah (a.s.) would you even rely slightly upon them and trust the promises of the treacherous lewd men? Beware! By Allah! He (Imam Husayn) was one who fasted during the days and remained awake at night (in worship) and was more close to the Prophet than the sons of lewd ones. By Allah!