6. When the Holy Prophet informed Hadrat fatimah of the Martyrdom in store for his grandson, she burst into tears and asked,"O my father! when would my son be martyred?" "In such a critical moment," replied the Holy Prophet," When neither I nor you, nor Ali would be alive." This accentuated her grief and she inquired again, "Who then, O my father, would commemorate Husayn's martyrdom? The Holy Prophet said, "The men and the women of a particular sect of my followers, who will befriend my Ahlu l-bayt, will mourn for Husayn and commemorate his martyrdom each year in every century."
Ibn Sad narrates from ash-shabi:
Imam Ali while on his way to Siffin, passed through the desert of Karbala,there he stopped and wept very bitterly. When interrogated regarding the cause of his weeping, he commented that one day he visited the Holy Prophet and found him weeping. when he asked the Apostle of Allah as to what was the reason which made him weep, he replied, "O Ali Gabriel has just been with me and informed me that my son Husayn would be martyred in Karbala, a place near the bank of the River Euphartes. This moved me so much that I could not help weeping."
Anas ibn Harith narrates:
One day the Holy Prophet ascended the pulpit to deliver a sermon to his associates while Imam Husayn and Imam Hasan were sitting before him. When address was over, he put his left hand on Imam Husayn and raising his head towards Heaven, said:"O my lord! I am Muhammad Thy slave and Thy prophet, and these two are the distinguished and pious members of my family who would fortify my cause after me. O my Lord! Gabriel has informed me that son Husayn would be killed. O my Lord! bless my cause in recompense for Husayn's martrydom,make him the leader of the martyrs, be Thou his helper and guardian and do not bless his murderers".
Sir Muhammad Iqbla says:
Imam Husayn uprooted despotism forever till the Day of Resurrection. He watered the dry garden of freedom with the surging wave of his blood, and indeed he awakened the sleeping Muslim nation.If Imam Husayn had aimed at acquiring a worldly empire, he would not have travelled the way he did ( from Medina to Karbala). Husayn weltered in blood and dust for the sake of truth. Verily he, therefore, became the bed-rock (foundation) of the Muslim creed; la ilaha illa Allah ( There is no god but Allah).
Khwaja Mu inu d-Din Chishti says:
He gave his head but did not put his hand into the hands of Yazid. Verily,Husayn is the foundation of la ilaha illa Allah. Husayn is lord and the lord of lords. Husayn himself is Islam and the shield of Islam. Though he gave his head (for Islam) but never pledged Yazid. Truly Husayn is the founder of "There is no Deity except Allah."
Brown in his A Literary of Persia Writes:
As a reminder, the blood-stained field of Karbala where the grandson of the Apostle of God fell at length, tortured by thirst and surrounded by the bodies of his murdered kinsmen, has been at any time since then sufficient to evoke, even in the most lukewarm and heedless, the deepest emotion, the most frantic grief and the exaltation of spirit before which pain, danger, and death shrink to unconsidered trifles. Yearly, on the tenth day of Muharram, the tragedy is rehearsed in persia, in India, in Turkey, in egypt, wherever a Shiite community or colony exists.