This is a list of the Imams as recognised by the different sub-sects of the Ismai'li sect of Shia Islam. Imams are considered members of the Bayt (Household) of Muhammad through his daughter Fatima.

Early Imams All Isma'ili sects share the first four Imams with the Zaydi Shia, and the first six Imams with the Twelver Shia. The Nizari and Musta'li are collectively also known as Fatimid Isma'ili, in contrast to the Sevener Isma'ili.

After Ali ibn Husayn Zayn al-Abidin, the Zaydis consider Zayd ibn Ali to be their next Imam rather than his older brother Muhammad al-Baqir who is considered the next Imam by the Isma'ili and Twelvers. After Ja'far al-Sadiq, the Twelvers consider Musa ibn Ja'far to be their next Imam, whereas Fatimid Isma'ilis consider his older brother Isma'il ibn Ja'far to be their next Imam, followed next by his son Muhammad ibn Isma'il. The Sevener Isma'ilis consider either Isma'il ibn Ja'far or his son Muhammad ibn Isma'il to be their final Imam and occulted Mahdi.

Sevener Fatimid Waqifi Qarmatian Musta'li Nizari Personage Period 1 1 Asās 1 Ali (632–661) 2 2 1 Mustawda Hasan ibn Ali (661–669) Mustaali 3 3 2 2 Husayn ibn Ali (669–680) (Mustaali)(661–680) (Nizari) 4 4 3 3 Ali ibn Husayn Zayn al-Abidin (680–713) 5 5 4 4 Muhammad al-Baqir (713–733) 6 6 5 5 Ja'far al-Sadiq (733–765) 7 (Mahdi) — 6 6 Isma'il ibn Ja'far (765–775) — 7 (Mahdi) 7 7 Muhammad ibn Isma'il (775–813)

The Seveners propagated their faith from their bases in Syria through Da'iyyun. In 899, Abd Allah al-Mahdi Billah announced that he was the "Imam of the Time" being also the fourth direct descendant of Muhammad ibn Isma'il in the very same dynasty, and proclaimed his previous three descendant Da'is to have been "hidden Imams". This caused a split between his Sevener followers accepting his claim and the Qarmatian who continued to dispute his claim and considered Muhammad ibn Isma'il as the Imam in occultation. Abdallah al-Mahdi Billah eventually became the first Fatimid Caliph with his empire spanning Egypt and the eastern Maghreb. Sevener communities continued to exist in Eastern Arabia and Syria, and for a while in northern Iran but where it was gradually replaced by Fatimid Isma'ilis and other Shiʿi communities.

Fatimid In the Fatimid and its successor Isma'ili traditions, the Imamate was held by the following. Each Imam listed is considered the son of the preceding Imam by mainstream accounts.

After his death, the succession was disputed. The regent Malik al-Afdal placed Mustansir's younger son Al-Musta'li Billah on the throne. This was contested by the elder son Nizar al-Mustafa li-Din Allah, who was defeated and died in prison. This dispute resulted in the split into two branches, lasting to this day, the Nizari and the Musta'li.

Musta'li

The Musta'li recognised Imams:

Hafizi Ismaili Muslims claimed that al-Amir died without an heir and was succeeded as Caliph and Imam by his cousin al-Hafiz. The Musta'li split into the Hafizi, who accepted him and his successors as an Imam, and the Tayyibi, who believed that al-Amir's purported son at-Tayyib was the rightful Imam and had gone into occultation.

Tayyibi The Tayyibi recognised Imam:

The Tayyibi branch continues to this day, headed by a Da'i al-Mutlaq as vice-regent in the imam's occultation. The Tayibbi have broken into several branches over disputes as to which Da'i is the true vice-regent. The largest branch are the Dawoodi Bohra, and there are also the Sulaymani Bohra and Alavi Bohra.

Hafizi The Hafizi recognised Imams:

The Hafizi Ismaili sect lived on until the 14th century in Egypt and Syria but had died out by the end of the 14th century.

Nizari

# ImamsPeriod 19 Nizar al-Mustafa li-Din Allah ibn al-Mustansir Billah1094–1097 20 Ali al-Hadi ibn Nizar al-Mustafa li-Din Allah ("hidden")1097–1136 21 Muhammad al-Muhtadi ibn Ali al-Hadi ("hidden")1136–1158 22 Hasan al-Qahir ibn Muhammad al-Muhtadi ("hidden") 1158–1162 23 Hasan Ala Zikrihis-Salam ibn Hasan al-Qahir 1162–1166 24 Nur al-Din Muhammad ibn Hasan Ala Zikrihis-Salam1166–1210 25 Jalal al-Din Hasan ibn Nur al-Din Muhammad 1210–1221 26 Ala al-Din Muhammad ibn Jalal al-Din Hasan1221–1255 27 Rukn al-Din Hasan Khurshah ibn Ala al-Din Muhammad1255–1256 28 Shams al-Din Muhammad ibn Rukn al-Din Hasan Khurshah1257–1310

Following the death of Shams al-Din Muhammad, the Nizari Isma'ili split into two groups: the Mu'mini Nizari (Muhammad-Shahi Nizari) who considered his elder son Ala al-Din Mu'min Shah to be the next Imam followed by his son Muhammad Shah, and the Qasimi Nizari (Qasim-Shahi Nizari) who consider his younger son Qasim Shah to be the next Imam.

Mu'mini

Following the disappearance of Amir Muhammad al-Baqir, some of the Mu'mini Ismaili believed he had gone into occultation. The Mu'mini Ismaili sect died out by the start of the 20th century.

Qasimi

The Qasimi Nizari Ismaili Imams have used the Aga Khan title since 1817.

See also Mahdi

References