[3] When Mustafá was nine years old, his family hosted Táhirih for about ten weeks in 1846, where she taught unveiled and enraged students by speaking of the need to abrogate the Sharia.
[3] In 1867, 53 Baháʼís of Baghdad wrote an appeal to the Congress of the United States for assistance in freeing Baháʼu'lláh from confinement by Ottoman authorities.
[5] Mustafá became the liaison between the Ottoman political authorities and the Baháʼís, and his home became a meeting place of dignitaries such as the mufti and ʻAbdu'l-Bahá's family.
[9] The "facilities provided by [Baha'u'llah's] staunch follower, Muhammad Mustafá, now established in Beirut to safeguard the interests of the pilgrims who passed through that city" was listed by Shoghi Effendi as one several milestones that attested to the vitality of the religion toward the end of Baháʼu'lláh's life.
[11] Abbas Amanat wrote in Resurrection and Renewal of Mustafá's work,[12] Another published account of this kind is that of Aqa Muhammad Mustafa al-Baghdadi, which was compiled at the request of Abul-Fazl Gulpayigani.
In his narrative, which is compiled mainly from his own and his father's recollections, he describes the mission of Bastami to the `Atabat [Shi`ite shrine cities of Iraq that include Najaf and Karbala'] and gives some valuable information about Qurrat al-`Ayn and her supporters.Mustafá wrote poetry, which was requested by Edward Browne and is now kept at the Cambridge University Library.
[3] Browne wrote of the encounter,[13] On the evening of the following day (Tuesday, April 22nd) we entered [Beirut], and halted for a while to rest and refresh ourselves with tea at the house of a Bábí of Baghdad which was situated in the outskirts of the town.
[3] In Memorials of the Faithful, ʻAbdu'l-Bahá wrote of him,[14] The opposition was powerful, the penalty obvious, the friends, every one of them, terrified, and off in some corner hiding their belief; at such a time this intrepid personality boldly went about his business, and like a man, faced up to every tyrant.
But this admirable Muhammad-Mustafa would boldly, proudly come and go like a man, and the hostile, because of his physical strength and his courage, were afraid to attack him.He had three sons: Hosayn Eqbal (1864-1952), ʻAli Ehsan (1874-1917), and Ziaʾ Mabsut (1884-1937).
Zia Mabsut was a leading Baháʼí in the United States, joined the editorial staff of the Star of the West from 1911 to 1915, accompanied ʻAbdu'l-Bahá on his journeys, supervised the construction of the Baháʼí House of Worship, played a leading role in the American race amity movement, and wrote his own memoirs, al-Reḥla al-baḡdādiya.
Another son of ʻAli Ehsan, ʿAbbās Baḡdādi (1915-1975), was professor of geology at the University of Baghdad (1961–71), imprisoned during the crackdown, and died in prison on 20 January 1975.