Three religions were prevalent in Arabia at the time of the arrival of the Holy Prophet (S). One was the religion of polytheistic Arabs, who worshipped idols in the worst way. Another was the religion of Christianity, which was in a very bad condition as it had ceased to be a divine religion and the third was the religion of Prophet Moosa (a.s.) (i.e. religion of the Jews) which had also deteriorated like Christianity. In short, the entire land of Arabia had gone completely astray. In these circumstances, it was a demand of Divine Mercy that the Holy Prophet (S) should be appointed by Allah.
But the religion of Muhammad (S) could not spread and grow easily and many calamities befell the Holy Prophet (S) in Mecca. Bani Umayyah people were bent on opposing God. They could not kill the Holy Prophet (S) so long as Abu Talib (r.a.) was alive. But after the death of this kind and caring uncle, the idol-worshippers made all preparations to kill the Holy Prophet (S). Among the apostates of Mecca, the greatest enemies of the Prophet were these very Bani Umayyah.
At last, after suffering many troubles, he left Mecca and migrated to Medina. The people of Medina gave him a warm welcome and accepted the Divine religion in large numbers. Against all hopes, Islam gained roots and flourished in Medina and the people of the native Mecca remained deprived of this blessing. Strange are the affairs of Allah! How strange that a deadly enemy like Abu Jahl was from the native place of Mecca! The Holy Prophet (S) did get refuge and peace in Medina and many Medinites also became Muslims with a sincere heart, but this flourishing of Islam became extremely intolerable for Bani Umayyah and other unbelievers of Mecca.
So Bani Umayyah did everything to harm both the Holy Prophet (S) and the religion of Allah. Abu Sufyan advanced to Medina many times, accompanied with an army, and also fought the Muslims of Medina in several battles, but always failed. Almighty Allah did not allow His religion to be destroyed.
Finally, Abu Sufyan and other apostates of Mecca became tired and sat put at home. The Battle of Hunayn shook the Bani Umayyah severely and made the devil powerless. We should remember that it took ten years for the Prophet to weaken Bani Umayyah and it was only his military acumen and intelligence, which controlled such a rebellious tribe. But alas and again alas! After a little while, Bani Umayyah not only regained their lost strength but also gradually became the rulers of all the territories of Islam and it was as a result this, that one of their rulers caused the massacre, which is now remembered as the Tragedy of Karbala’.1
It is recorded in history, how Bani Umayyah became powerful once again and I have recounted those events in my book Kashful Haqaiq Vol. 12 and will again mention them wherever necessary in this book. But before I narrate the events of Karbala’, it is necessary to explain the religious conditions of the Muslims of those days so that the events of Karbala’ may also be understood easily. This is essential, because without knowing this, no one can understand the truth about Karbala’.
For instance, one could ask in astonishment: “My God! What is this? When Husayn (a.s.) was the grandson of the Holy Prophet (S), how and why did the Muslims killed him so mercilessly?” But when this questioner knows the facts, his bewilderment will go away and the Karbala’ incident will appear to him natural according to the law of cause and effect. This is a world where every happening must have a cause.