Imam Ali passed away. Mu'awiyah became a Caliph. Unjust rulers succeeded him. Life in Kufa became unbearable.
The rulers imprisoned and killed the God-fearing followers of Ahlul Bayt.
Ziyad bin Abeeh ruled Kufa. Then his son Ubaidullah succeeded him. The latter killed the Prophet's grandson. Besides he killed seventy of his companions and his family.
Al-Hajjaj did his best to please the Umayyad rulers. He filled his prison with innocent men and women. In his prison, there were fifty thousand men and thirty thousand women.
The prison was roofless. The prisoners were subjected to sun and heat in summer. And they were subjected to rain and cold in winter.
A person had been in prison for months. One day his mother went to the prison to visit him. She was astonished to see him. She said:
He's not my son. My son is white. This young man is a Negro. I don't know him.
The young man reminded his mother of some marks. The mother became certain of her son. She burst into tears. Then she died of sadness.