Abū ʿAbd Allāh Fayrūz al-Daylamī al-Himyarī (Arabic: ابو عبداللہ فيروز الديلمي, Persian: فیروز دیلمی, Firuz the Daylamite) was a Persian companion of the Islamic prophet Muhammad.
Fayruz al-Daylami, also spelt Firuz al-Daylami, belonged to the descendants (abna') of the Persians that had been sent by Khosrow I to Yemen, conquered it, and driven out the Abyssinians. It is stated that a delegation including Fayruz came to Medina from Yemen in 631 and embraced Islam. He had two wives who were sisters. As a result of his conversion to Islam, he divorced one of his wives on the order of the Islamic prophet Muhammad.[1] [2]
Later in 632 after Aswad Ansi claimed prophethood in Yemen, proceeded to invade Najran and much of Yemen, attacking Sana'a and the ruler of Yemen, Shahr, who was the son of Badhan, was killed in battle against Aswad. Fayruz was sent out by Muhammad to kill Aswad. In reference to this, in al-Tabari's History, Muhammad was reported as saying, "He was killed by the virtuous man Fayruz al-Daylami."
Fayruz died during the reign of third caliph Uthman (644-656).[3] However, some sources mentioned he governed the region of Sana'a and died later in 673 during the reign of Mu'awiya I.