Bay'a to Muhammad al-Qahir billah

البيعة لمحمد القاهر بالله

320 AH

In 320 AH Muhammad al-Qahir billah was pledged to the caliphate on Thursday, two nights before the end of Shawwal, after being moved from the house of Abd Allah ibn Tahir to the house of the caliphate, and he was given the laqab al-Qahir billah 1 2. According to al-Suyuti, he was first given that laqab in 317 AH, when Mu'nis and the commanders pledged to him after the deposition of al-Muqtadir, on the night of the fourteenth of Muharram; he sat on Sunday, but al-Muqtadir was restored on the third day. He was pledged a second time when al-Muqtadir was killed in 320, after the son of al-Muktafi refused, saying: my uncle has more right to it 3.

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Overview

In 320 AH Muhammad al-Qahir bi-Llah was given the oath of the caliphate on Thursday, two nights before the end of Shawwal. 1

al-Tabari's account

al-Qahir was moved from the house of Abd Allah ibn Tahir to the palace of the caliphate, and was given the oath and called al-Qahir bi-Llah. 1 2

al-Suyuti's account

al-Suyuti says that he was first given this title in 317 AH, when Munis and the emirs gave him their oath after the deposing of al-Muqtadir. He sat on Sunday, but al-Muqtadir was restored on the third day. He was given the oath a second time when al-Muqtadir was killed in 320 AH, after Ibn al-Muktafi had refused and said that his uncle had a better right to it. 4

Sources

  1. Tarikh al-Rusul wa'l-Muluk — al-Tabari (ed. Abu al-Fadl Ibrahim) , j.11 p.154
  2. Tarikh al-Rusul wa'l-Muluk — al-Tabari (ed. Abu al-Fadl Ibrahim) , j.11 p.161
  3. Tarikh al-Khulafa — al-Suyuti (Dar al-Minhaj edition) , p. 591,597
  4. Tarikh al-Khulafa — al-Suyuti (Dar al-Minhaj edition) , p.591,597
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islam.museum contributors. “Bay'a to Muhammad al-Qahir billah”. islam.museum, https://islam.museum/en/event/bayat-to-al-qahir/. CC BY-SA 4.0. Last updated 2026-10-22.

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