His bier while being taken for burial to the Holy Prophet's...
His bier while being taken for burial to the Holy Prophet's tomb was shot at with arrows by his enemies, (under direct supervision and consent of A'ishah), and it had to be diverted for burial to the Jannatu’l-Baqi` at Medina. His tomb was demolished along with others on 8th Shawwal 1344 (21st April 1926) by the Saudi rulers when they came to power in Hijaz. The terms of the peace treaty were soon violated, but earned only a short-lived glory for Mu’awiyah.
Its aftermath proved disastrous and doomed the fate of his son Yazid and dealt a fatal blow to the entire family of Umayyads. After the death of Mu'awiyah, Imam Husayn emerged as the insurmountable mountain of truth and determination.
In the gruesome tragedy of Karbala', by sheer force of numbers, and by isolating the seventy-two members of Imam Husayn's party and stopping them from even getting water to drink for three days, Yazid succeeded in annihilating the seventy-two persons including members of the Imam's family who were with him. This dastardly success of Yazid was, however, short-lived.
The Muslims turned against him on learning of the heinous act he had committed and this resulted in the downfall of Yazid and the extinction of the Umayyad power from the face of the earth. al-`Allamah at-Tabataba'i writes: Imam Hasan Mujtaba, upon whom be peace, was the second Imam. He and his brother Imam Husayn were the two sons of Amir al-Mu'minin `Ali and Hadrat Fatimah, the daughter of the Prophet.
Many times the Prophet had said, "Hasan and Husayn are my children." Because of these same words `Ali would say to his other children, "You are my children and Hasan and Husayn are the children of the Prophet." Imam Hasan was born in the year 3 AH, in Medina and shared in the life of the Prophet for somewhat over seven years, growing up during that time under his loving care.
After the death of the Prophet which was no more than three, or according to some, six months earlier than the death of Hadrat Fatimah, Hasan was placed directly under the care of his noble father. After the death of his father, through Divine Command and according to the will of his father, Imam Hasan became Imam; he also occupied the outward function of caliph for about six months, during which time he administered the affairs of the Muslims.