al-Ḥāmidī, Ibrāhīm b. al-Ḥusayn b. Abī al-Suʿūd (d. Shaʿbān 557/July 1162), was the second dāʿī muṭlaq (see q.v dāʿī) of the Ṭayyibī Ismailis in Yemen. He provided the Ṭayyibī esoteric metaphysical system of thought (ḥaqāʾiq) with a philosophical foundation that was largely grounded in the Rasāʾil of the Ikhwān al-Ṣafāʾ, in particular al-Risāla al-jāmiʿa and the works of Ḥamīd al-Dīn al-Kirmānī (d. after 411/1020), together with a variety of gnostic teachings. In doing so, he propounded a new framework for …