Fayruz al-Daylami
Fayruz al-Daylami was a Persian companion of the Islamic prophet Muhammad. He belonged to the descendants of Persians that had been sent by Khosrow I to Yemen, conquered it, and drove out the Abyssinians.
After Aswad Ansi claimed prophethood in Yemen, proceeded to invade Najran and much of Yemen, attacking Sana'a and the ruler of Yemen and Shahr, who along with the son of Badhan was killed in battle against Aswad, Fayruz was sent out by the Prophet Muhammad to kill him. In reference to this, in al-Tabari's History, Muhammad was reported as saying, "He was killed by the virtuous man Fayruz b. al-Daylami." Fayruz died during the caliphate of Uthman.
