- Ibn Shukr, ʻAbd Allāh ibn ʻAlī , 1153-12251
- Ibn Umayl, Muḥammad, active 10th century. Qaṣīdah al-Nūnīyah1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz al-Qānūn fī al-ṭibb1
- Ijtihād (Islamic law)1
- India1
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- Inscriptions1
- Iran--Mashhad1
- Islam--Rituals1
- Islamic education1
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- Jighmīnī, Maḥmūd ibn Muḥammad, -1221? Qānūnchah1
- Jighmīnī, Maḥmūd ibn Muḥammad, -1221?. Qānūnchah1
- Joseph (Son of Jacob)1