Abu Lu'lu'a

Abu Lu'lu'a, also known as Fīrūz Nahāvandī, was a Sasanian Persian slave who gained notoriety for assassinating Umar ibn al-Khattab, the second caliph of Islam, in November of six hundred forty-four. Captured during the Arab-Muslim conquest of Persia, he was brought to Medina, the capital of the Rashidun Caliphate, where his exceptional skills as a craftsman allowed him entry into the city, typically restricted to non-Arab captives.

The motives behind Abu Lu'lu'a's drastic action remain somewhat ambiguous, though historical accounts suggest a tax dispute played a significant role. After requesting Umar to lift a tax imposed by his Arab master, al-Mughira ibn Shu'ba, and receiving a refusal, Abu Lu'lu'a seized the opportunity to attack the caliph during a congregational prayer in the mosque, fatally wounding him with a double-bladed dagger.

Following the assassination, the fate of Abu Lu'lu'a diverges into two narratives. Some sources indicate he was captured and executed in Medina, while others suggest he committed suicide. In a retaliatory act, Ubayd Allah ibn Umar, one of Umar's sons, killed Abu Lu'lu'a's daughter and others associated with him. However, later legends from the Safavid era claim that Ali, the cousin and son-in-law of the Prophet Muhammad, intervened to save Abu Lu'lu'a, transporting him to Kashan, Iran, where he reportedly married and lived out his days.

In Kashan, a shrine was erected in his honor, which became the focal point of an annual anti-Sunni festival known as Omar Koshan, celebrating his assassination of Umar. This event, viewed by Shi'ites as a significant act against an oppressive regime, led to Abu Lu'lu'a being affectionately referred to as Bābā Shujāʿ al-Dīn, or 'Father Courageous of the Faith.'