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Fayruz al-Daylami — The Yemeni Companion Who Killed the False Prophet al-Aswad al-Ansi and Kept Yemen in the Islamic Fold, Whose News Reached Medina Before the Prophet's Death

فَيرُوزُ الدَّيلَمِيّ — الصَّحَابِيُّ اليَمَنِيُّ الَّذِي قَتَلَ النَّبِيَّ الكَاذِبَ الأَسوَدَ العَنسِيَّ وَأَبقَى اليَمَنَ فِي دَائِرَةِ الإِسلَامِ وَبَلَغَ خَبَرُهُ المَدِينَةَ قَبلَ وَفَاةِ النَّبِيّ
2 min read · 236 words

Fayruz al-Daylami (فَيرُوزُ الدَّيلَمِيّ; full name: Fayruz ibn al-Dahalak al-Daylami al-Yemani; from the Dailam tribe of Yemen; d. unknown but survived the Prophet by many years; a Companion of Persian or Yemeni highland origin who embraced Islam; Yemeni governor Bazan [or Badhan] had also recently converted to Islam; the false prophet al-Aswad al-Ansi [Abhala ibn Ka'b] arose in Yemen in 10 AH — a gifted orator who claimed prophethood, had a large following, captured the main Yemeni cities, and effectively expelled the Muslim governor Shahr ibn Badhan [whom he killed]; Fayruz al-Daylami, along with other loyal Muslims and some disaffected tribal leaders, organized a conspiracy against al-Aswad; Fayruz personally entered al-Aswad's bedroom at night and killed him — al-Aswad's own wife Azad [who had been forcibly married to him after her husband was killed] helped the conspirators gain access; al-Aswad was killed the night before the Prophet's death in Medina; the news of his death reached Medina through revelation to the dying Prophet and then shortly after by messenger; Umar ibn al-Khattab said that the news of al-Aswad's killing and the messenger arrived on the same day as the Prophet's own death; Fayruz continued to live in Yemen and was respected there as a Companion) is one of the most consequential figures of the ridda period.

Al-Aswad al-Ansi’s Revolt

Al-Aswad al-Ansi was among the most effective of the false prophets of late Islam’s first decade. Unlike the more famous Musaylima, al-Aswad combined genuine oratory with military success — he captured Sana’a, the Yemeni capital, expelled or killed the Muslim governors, and built a substantial following that included real tribal power.

He killed Shahr ibn Badhan, the Muslim governor, and married his widow Azad by force. This detail — the compelled marriage — would prove his undoing: Azad became an insider informant for the conspirators.


The Night Operation

Fayruz al-Daylami led the conspiracy. Azad provided access to al-Aswad’s private quarters. Fayruz entered at night and killed al-Aswad. Al-Aswad’s loud death cry was heard — but when people asked al-Aswad’s guards what the sound was, they claimed it was the prophet in divine ecstasy. This bought enough time for the conspirators to consolidate before morning.


The Prophetic Revelation

Islamic sources report that the dying Prophet received word of al-Aswad’s death through revelation the night before his own death — saying “the liar of Yemen has been killed.” The messenger carrying the physical news arrived in Medina on the day the Prophet died.

This synchronicity — the killing of a false prophet and the death of the true Prophet on the same night — was read as profoundly meaningful by early Islamic historians.

See also: Seerah Al Ala Ibn Al Hadrami, Seerah Zaid Ibn Arqam, Seerah Nuaym Ibn Masud Al Ashjai, Seerah Jabir Ibn Abdallah Al Ansari, Seerah Saad Ibn Muadh

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