- Holding: University of Pennsylvania1
- Homosexuality--Religious aspects--Islam1
- Horology1
- Ibn Bābawayh al-Qummī, Muḥammad ibn ʻAlī, 918 or 919-991 or 992. Man lā yaḥḍuruhu al-faqīh1
- Ibn Nujaym, Zayn al-Dīn ibn Ibrāhīm, -1563. Ṣaghāʼir wa-al-kabāʼir1
- Ibn Quṭlūbughā, al-Qāsim ibn ʻAbd Allāh, 1399 or 1400-1474 or 1475. Ḥawālah1
- Ibn Saʻādah, Aḥmad ibn ʻAlī, active 13th century. Risālat al-ʻilm1
- Ibn Sharaf Shāh, Ḥasan ibn Muḥammad, 1247 or 1248-1315 or 1316. Wāfiyah fī sharḥ al-Kāfiyah1
- Ibn Wadʻān, Muḥammad ibn ʻAlī, d. 1101. Arbaʻīn al-Wadʻānīyah1
- Ibn al-Uqlīshī, Aḥmad ibn Maʻadd, -1155 or 11561
- Ibn al-ʻArabī, 1165-12401
- Ibn al-ʻArabī, 1165-1240. Works1
- Imams (Shiites)1
- Intellectual life1
- Intention--Religious aspects--Islam1
- Interest (Islamic law)1
- Iran1
- Islam--Theology1
- Islamic calendar1
- Islamic chronology1