- Ibn Sharaf Shāh, Ḥasan ibn Muḥammad, 1247 or 1248-1315 or 1316. Wāfiyah fī sharḥ al-Kāfiyah1
- Ijtihād (Islamic law)1
- Imamate1
- Imams (Shiites)1
- Indexes1
- India--Delhi1
- India--Hyderabad1
- Iran1
- Iran--Mashhad1
- Isbījābī, Aḥmad ibn Manṣūr, -approximately 1087. Sharḥ al-Mukhtaṣar fī al-fiqh1
- Isfarāyīnī, Muḥammad ibn Muḥammad, -1285. Ḍawʼ al-Miṣbāḥ1
- Islam--Customs and practices1
- Islamic education1
- Islamic funeral rites and ceremonies1
- Islamic magic1
- Islamic sermons1
- Islamic sermons, Arabic1
- Ismāʻīl ibn ʻAbd Allāh, 1792 or 1793-18631
- Istiṣḥāb (Islamic law)1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Miṣbāḥ fī sharḥ al-Miftāḥ1