An Arabic-script ambigram, where ‘Muhammad’ upside down is read as ‘Ali’ and vice versa.

Eid-e Ghadir: The Pivotal Day in Islamic History, Unknown to the World at Large, When Prophet Muhammad Appointed Ali as His Successor — Prince Rahim Aga Khan is the 50th Ismaili Imam in the Succession of Hereditary Imams

God chose Adam and Noah and the House of Abraham and the House of Imran above all beings, the seed of one another; God hears, and knows — Qur’an, 3:33-34, translation by A. J. Arberry, see Corpus Quran for multiple translations.

Today the Ismailis are the only Shia community who, throughout history, have been led by a living, hereditary Imam in direct descent from the Prophet — His Late Highness Aga Khan IV, Parliament of Canada, Ottawa, February 27, 2014.

Prepared and Compiled by MALIK MERCHANT

On Wednesday May 27, 2026, corresponding to the 10th day of the Islamic month of ‘DhuI-Hijjah, Muslims in Canada and around the world celebrated the Festival of Sacrifice or Eid al-Adha at the completion of the annual pilgrimage to Mecca.

Little is it known in the broader context and understanding of Islamic history, that on the 18th day of ‘DhuI-Hijjah, a week following his final pilgrimage, the Prophet Muhammad (may peace be upon him and his progeny) — based on a divine command from Allah — designated Hazrat Ali as his successor and the first in the continuing line of Hereditary Imams. This event took place in 632 CE and is observed by all Shia Muslims, including the Ismailis, as Eid-e Ghadir because it occurred at Ghadir Khumm, a valley between Mecca and Medina.

The majority of the Muslims, the Sunnis, do not accept the Shia version of this historic event and do not associate it with Ali’s succession to Muhammad. Thus, the world’s lack of knowledge about a pivotal historic moment in Islam.

For the Shia Ismaili Muslims, who will be commemorating this historic day on or around June 3, 2026, this event is of added significance as they are led by a living Hereditary Imam, His Highness the Aga Khan, whom they lovingly and respectfully address as Mawlana Hazar Imam (Our Lord the Present/Living Imam).

Rahim Aga Khan
Mawlana Hazar Imam, His Highness Prince Rahim Aga Khan, the 50th Hereditary Imam, who succeeded to the Throne of Imamat on February 4, 2025.

The late Aga Khan in a rare interview with France’s journal, Politique International, has comprehensively described the general Shia understanding of Imamat, the Sunni belief as well as his own status as follows:

“The religious leadership of the Ismaili Imam goes back to the origins of Shia Islam when the Prophet Muhammad appointed his son-in-law, Ali, to continue his teachings within the Muslim community. The leadership is hereditary, handed down by Ali’s descendants, and the Ismailis are the only Shia Muslims to have a living Imam, namely myself. The other Shia — the Twelvers — revere a “hidden” Imam who will return on the Day of Judgment to take part in the final judgment.

“It is the presence of the living Imam that makes our Imamat unique.

“The Sunni are completely different in that they do not accept the idea of continuity of religious leadership by members of the Prophet’s family.”

Speaking to both the Houses of the Canadian Parliament, His Late Highness Aga Khan IV further elaborated on the Ismaili Imamat and the role of an imam as follows:

Aga Khan at the Parliament of Canada, September 2014
Mawlana Shah Karim, His Late Highness Aga Khan IV, 49th Imam and the direct descendant of the Prophet Muhammad at the Canadian Parliament on Thursday, February 27, 2014. Photograph: © Jean-Marc Carisse.

“The Ismaili Imamat is a supra-national entity, representing the succession of Imams since the time of the Prophet. But let me clarify something more about the history of that role, in both the Sunni and Shia interpretations of the Muslim faith. The Sunni position is that the Prophet nominated no successor, and that spiritual-moral authority belongs to those who are learned in matters of religious law. As a result, there are many Sunni imams in a given time and place. But others believed that the Prophet had designated his cousin and son-in-law, Ali, as his successor. From that early division, a host of further distinctions grew up — but the question of rightful leadership remains central. In time, the Shia were also sub-divided over this question, so that today the Ismailis are the only Shia community who, throughout history, have been led by a living, hereditary Imam in direct descent from the Prophet.”

In historical sources, it is recorded that on the way back to Medina after performing a pilgrimage to Mecca, the Prophet received a revelation that Ismaili Muslims recite in their daily prayers:

“O Messenger, deliver that which has been sent down to thee from thy Lord; for if thou dost not, thou wilt not have delivered His Message. God will protect thee from men. God guides not the people of the unbelievers” — Qur’an, 5:67, translation by A.J. Arberry, see Corpus Quran.

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“We search for a union with the family of the Chosen (Prophet Muhammad). We search for the truth of son after son. We are totally obedient to his offspring, one of the other. There is no other thing we can add to this but itself. We endeavour in our faith so that we do not turn out to be faithless.” — Ismaili poet Nizar Quhistani in reference to the Qura’nic verses mentioned at top of post

Upon receiving this revelation, the Holy Prophet stopped at an oasis known as Ghadir Khumm, and addressed a large gathering of Muslims who had accompanied him.

In History in Quotations M. J. Cohen and John Major write:

“Muhammad said: ‘He of whom I am the Mawla, Ali is his Mawla. O God, be the friend of him who is his friend and be the enemy of his enemy.’

“This became the proof text for the Shia claim that Ali, the Prophet’s cousin and son-in-law, was the Prophet’s rightful successor after the Prophet’s death in 632. The meaning of Mawla here probably implies the role of patron, lord or protector.”

In an entry for the Encyclopaedia of Islam, 2nd edition, (EI2), under the title Ghadir Khumm, L. Veccia Vaglieri writes:

“Ghadir Khumm is famous in the history of Islam because of a sentence (or some sentences) in favour of ‘Ali which the Prophet uttered there during a discourse….Taking ‘Ali by the hand. he asked of his faithful followers whether he, Muhammad, was not closer to the Believers than they were to themselves; the crowd cried out: “It is so, O Apostle of God!”, he then declared. “He of whom I am the mawla, of him ‘Ali is also the mawla (man kuntu nawlahu fa-‘Ali mawlahu)

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Images of some stamps and coins issued by the Islamic Republic of Iran between 1990 and 2010 commemorating the Idd-e-Ghadir. The inscriptions inlude the Shahada, Qur'anic ayats and the declaration made by Prophet Muhammad at Ghadir Khumm, "Mun Koontu Mawla, Fa Hada, Aliyun Mawla" meaning "He of whom I am the Mawla Ali is also the Mawla." Simerg
Images of some stamps and coins issued by the Islamic Republic of Iran between 1990 and 2010 commemorating the Idd-e-Ghadir. The inscriptions inlude the Shahada, Qur’anic ayats and the declaration made by Prophet Muhammad at Ghadir Khumm, “Mun Koontu Mawla, Fa Hada, Aliyun Mawla” meaning “He of whom I am the Mawla Ali is also the Mawla.”

“Most of those sources which form the basis of our knowledge of the life of the Prophet pass in silence over Muhammad’s stop at Ghadir Khumm….Consequently, the western biographers of Muhammad, whose work is based on these [Sunni] sources, make no reference to what happened at Ghadir Khumm. It is however certain that Muhammad did speak in this place and utter the famous sentence…the hadiths are so numerous and so well attested by the different isnads that it does not seem possible to reject them.” (Note: special access is required to read articles in EI2. Vaglieri’s piece was reproduced in full in the UK Ismaili Association’s publication Ilm, December 1976, pages 28-30, with the permission of E.J. Brill, publishers of EI2.)

The Prophet, about 90 days before his death, was transferring his own spiritual authority bestowed upon him by Allah to Hazrat Ali, making him — and all the Imams that follow — the Amirul Mu’minin, or Master of the Believers.

On instruction from Prophet Muhammad, Hazrat Ali received baiyat (the oath of allegiance), from the Muslims assembled there, including Umar b. al-Khattab, Islam’s second Caliph, as stated in Vaglieri’s piece in EI2.

According to Shia traditions and sources, following the proclamation, the final verse of the Qur’an was revealed to the Prophet:

“Today I have perfected your religion for you, and I have completed My blessing upon you, and I have approved Islam for your religion” — Qur’an 5:5/3, translation by A. J. Arberry, see Corpus Qur’an.

This marked the end of the period of Nabuwwa, or Prophethood, and the historical beginning of the Institution of Imamat.

Eid-e Ghadir is an anniversary of special significance to all Shia Muslims, as it is also associated with the well-attested tradition in which the Prophet is said to have proclaimed:

“I am leaving among you two matters of great weight (al-thaqalayn), the Book of Allah and my kindred (itrati), the People of my House (Ahl al-Bayt), and these two shall never be separated until they return to me at the Pool [of Kawthar in Paradise on the Day of Judgement]…”

The Shia Ismaili tradition bears witness to the continuity of the authority vested at Ghadir Khumm. Today, this leadership and authority is vested in Mawlana Hazar Imam Shah Rahim al Hussaini, His Highness the Aga Khan V.

The Rope of Imamat has continued over 1,400 years, from Hazrat Ali, to the present 50th hereditary Imam and direct descendant of Prophet Muhammad through Hazrat Ali and Hazrat Bibi Fatima al-Zahra, Khatun-i Jannat.

In commemorating Eid-e Ghadir, the Ismaili Muslims celebrates the seminal event of Ghadir Khumm, reaffirming their allegiance to the Imam-of-the-Time as the direct lineal successor and inheritor of the authority of Hazrat Ali.

Date posted: June 2, 2026.

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Featured image at top of post: An Arabic-script ambigram, where ‘Muhammad’ upside down is read as ‘Ali’ and vice versa.

A special note about the Encyclopaedia of Islam, Second Edition (EI2): Finished in 2005, the EI2 is a massive resource spanning five decades of scholarship. It sets out the present state of our knowledge of the Islamic World. It is a unique and invaluable reference tool, an essential key to understanding the world of Islam, and the authoritative source not only for the religion, but also for the believers and the countries in which they live. 

In the Presence of Light: The Conduct of the Murid Before the Imam in Ismaili History and Literature

Intricate floral mandala design in brown on a light background.
The motif representing Nur, or Light, has been utilized during the inaugural visits of Mawlana Hazar Imam, His Highness the Aga Khan, to Ismaili Muslims globally since he became the 50th Hereditary Ismaili Imam on February 4, 2025, succeeding his father, Mawlana Shah Karim, His Late Highness Aga Khan IV. His seventh visit to his followers will be to Canada from March 25-31, 2026. Photograph: The Ismaili.

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An elderly man with gray hair and glasses, wearing a dark suit, looking towards the camera.

“There are many ways to serve,” Mawlana Shah Karim, His Late Highness Aga Khan IV, assured award-winning Ismaili scholar

1975 Ismailia Association Conference Aga Khan Establish Institute of Ismaili Studies, Simerg
The Institute of Ismaili Studies (IIS) owes its establishment to the leadership and vision of Mawlana Shah Karim, His Late Highness Aga Khan IV. Along with leaders of the Ismailia Association and Ismaili scholars, a momentous decision was made to establish the IIS at a conference held in April 1975 in Paris. This decision, which carries the weight of history, was a pivotal moment for the Ismaili community. The IIS was formally established on December 13, 1977, through a Talika (written holy message) that His Late Highness sent to his worldwide community. Photograph: Ilm magazine, October 1975.

Professor Karim H. Karim holding the first Alumni Recognition Award that was presented to him by the Institute of Ismaili Studies on March 23, 2024, at the Ismaili Centre London. The sculpture was designed by Mohammed Adra (AKDN Geneva) and is inspired by Karl Shlaminger’s Hepta Globe sculpture, which is placed at the entrance of the Aga Khan Centre in London.
Professor Karim H. Karim, the author of this piece and a respected member of our academic and Ismaili community, was awarded the first Alumni Recognition Award by the Institute of Ismaili Studies. This prestigious honour, presented to him on March 23, 2024, at the Ismaili Centre London, is a testament to his exceptional service, leadership, positive impact, and professional excellence. Photograph: The Institute of Ismaili Studies via Karim H. Karim.
Professor Karim H. Karim speaking at an event, holding a microphone and wearing a gray suit.

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“My Beloved Mother” by His Late Highness Aga Khan III

My Beloved Mother by the Aga Khan
His Late Highness Aga Khan III (1877 — 1957), 48th Hereditary Imam of the Ismaili Muslims; inset with his mother, Lady Ali Shah. Please click on the image for the article.

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Rare photos of His Late Highness Aga Khan IV in Nairobi, Kenya, from Mohamed Kassam’s archives

Aga Khan visits primary school Nairobi
School teacher Shirin Kassam, sister of Mohamed Kassam, with Mawlana Shah Karim, His Late Highness Aga Khan IV, during his visit to the Aga Khan Primary School, Nairobi, Kenya, in the early 1960s. Please click on the image to view more photos.

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Film: His Highness the Aga Khan (d. February 4, 2025) in his own words

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His Highness the Aga Khan

Tributes to His Highness the Aga Khan IV, the 49th Imam of the Ismaili Muslims

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The Preamble of the New Ismaili Constitution Defines the Principle of Succession and the Authority and Role of the Ismaili Imam

Ismaili Constitution Imamat Aga Khan, Simerg
Mawlana Hazar Imam, His Highness the Aga Khan, is seen signing a new constitution for the worldwide Ismaili community on his 50th birthday, December 13, 1986. Beside him is the flag of the Ismaili Imamat, bearing his crest in the centre.
Aga Khan III Simerg and Barakah

Aga Khan III: The Imam of the Socio-Economic Revolution – Glimpses from His Life

Aga Khan III Simerg Imam of the Socio Economic Revolution
Cover page of Simerg’s publication The Imam of the Socio-Economic Revolution. Please click on the image to download the PDF file.

Utah’s Andrew Kosorok reflects on the Aga Khan: “Not all heroes wear capes,” and other articles

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