Did the son of umar(ra) commanded to kill all non Arab muslim.
When they finished the prayer, Omar said, “O Ibn ‘Abbas! Find out who attacked me.” Ibn ‘Abbas kept on looking here and there for a short time and came to say. “The slave of Al Mughira.” On that Omar said, “The craftsman?” Ibn ‘Abbas said, “Yes.” Omar said, “May Allah curse him. I did not treat him unjustly. All the Praises are for Allah Who has not caused me to die at the hand of a man who claims himself to be a Muslim. No doubt, you and your father (Abbas) used to love to have more non-Arab infidels in Medina.” Al-Abbas had the greatest number of slaves. Ibn ‘Abbas said to Omar. “If you wish, we will do.” He meant, “If you wish we will kill them all.” Omar said, “You are mistaken (for you can’t just randomly kill people, especially not Muslims) after they have spoken your language, prayed towards your Qibla,and performed Hajj like yours.” [i.e. Omar opposed the killing of Persians and other non-Arabs just because of the crime of one Persian Mushrik. A Persian Muslims was Omar’s brother just as Salman the Persian was whom Omar made his Wazir of Al-Mada’in, the former capital of Persia!]