[Pirooz Nahavandi] slipped in among the people, carrying in his hand a dagger with two blades and its haft in the middle. He struck 'Umar [ibn-alkhattab] six blows, one of which was below his navel, and this was the one which killed him. [Pirooz] also killed Kulayb b. Abi al-Bukayr al-Laythi, who was behind ['Umar].

The quote describes the assassinnation pf Umar Ibn-Alkhattab by Pirooz Nahavandi, one of the last Persian patriots of past 1400 years.  His name is replaced (in the bracketed portion) his title of Abu Lu Luah for clarification.  

May his memory, and his service to our people remain eternal.