- Ibn Wadʻān, Muḥammad ibn ʻAlī, d. 1101. Arbaʻīn al-Wadʻānīyah2
- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, -1412. Lumaʻ al-yasīrah fī ʻilm al-ḥisāb2
- Ibn al-Nāẓim, Muḥammad ibn Muḥammad, d. 1287 or 8. Sharḥ al-Alfīyah2
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Fatḥ al-mubīn li-sharḥ al-Arbaʻīn2
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Tahdhīb al-Tahdhīb.--Abridgment2
- Illumination of books and manuscripts, German2
- Illumination of books and manuscripts, Medieval2
- Illumination of books and manuscripts, Turkish2
- Imams (Shiites)--Biography2
- Immortality--Islam2
- Incarnation2
- India--Hyderabad2
- India--Jammu and Kashmir2
- India--Mughal Empire2
- India--Vadodara2
- India--Vārānasi (Uttar Pradesh)2
- Indians of Mexico--Land tenure2
- Indians, Treatment of2
- Interest (Jewish law)2
- Interpersonal relations--Religious aspects--Islam2