Mohammed Isma'tl Ibn

Muhammad ibn Ismāʿīl[1][2] alias Maymūn Al-Qaddāḥ[3] was the son of Isma'il ibn Jafar; he was an Ismāʿīlī Imam. The majority of Ismāʿīlī follow his descendants through his son Wafi Ahmad (Abdullah ibn Mohammad). His descendants further founded the Fatimid Empire, also called the Nizari and Mustaali.[4][1]

ref: https://www.wikiwand.com/en/Muhammad_ibn_Isma%27il

Ali Hasan Husayn as-Sajjad al-Baqir Jaʿfar al-Ṣādiq Ismāʿīl ibn Jaʿfar al-Mubārak Muhammad ibn Ismāʿīl ash-Shākir ʿAbadu l-Lāh (al-Wāfī Ahmad) Ahmad (al-Taqī Muhammad) Ḥusayn (ar-Raḍī ʿAbdillāh) ʿAbdu l-Lāh al-Mahdī bi l-Lāh al-Qāʾim al-Manṣūr al-Muʿizz al-ʿAzīz al-Ḥākim al-Ẓāhir al-Mustanṣir bi l-Lāh Nizār al-Muṣṭafā li-Dīn’il-Lāh / Aḥmadu l-Mustāʿlī bi l-Lāh Manṣūr al-Āmir bi-Aḥkām’il-Lāh Abu l-Qāsim al-Tayyib