- Free will and determinism--Religious aspects--Islam1
- Friends and associates1
- Friendship1
- Future life--Islam1
- Fārābī. Ithbāt al-ʻaql1
- God (Islam)--History of doctrines1
- God (Islam)--Name1
- Hadith--Authorities1
- Horology1
- Horsemanship1
- Horses1
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- Ibn Zaydūn, Aḥmad ibn ʻAbd Allāh, 1003 or 1004-1071. Risālah al-hazalīyah1
- Ibn al-Fāriḍ, ʻUmar ibn ʻAlī, 1181 or 1182-12351
- Ibn al-Khashshāb, ʻAbd Allāh ibn Aḥmad, 1098 or 1099-1171 or 11721
- Ibn al-ʻArabī, 1165-12401
- Ibn ʻAllān, Muḥammad ʻAlī ibn Muḥammad, 1588-1648. Ḍawābiṭ al-taqṭīʻ1
- Idkāwī, Muḥammad. Fawāʼid al-muhimmāt fī maṭāliʻ al-awqāt1
- Immortality--Islam1
- Intention--Religious aspects--Islam1