- Ibn Bābawayh al-Qummī, Muḥammad ibn ʻAlī, 918 or 919-991 or 992. Man lā yaḥḍuruhu al-faqīh1
- Ibn al-Muṭahhar al-Ḥillī, al-Ḥasan ibn Yūsuf, 1250-1325. Mabādiʼ al-wuṣūl ilá ʻilm al-uṣūl1
- Ibn al-Shahīd al-Thānī, al-Ḥasan, 1551 or 1552-1602 or 1603. Maʻālim al-dīn wa-malādh al-mujtahidīn1
- Ijtihād (Islamic law)1
- Immortality--Islam1
- Inheritance and succession (Islamic law)1
- Intention--Religious aspects--Islam1
- Iran--Dāmghān1
- Iran--Kirmān1
- Islam1
- Islamic funeral rites and ceremonies1
- Jidd Ḥafṣī, ʻAlī ibn Luṭf Allāh, active 17th century-18th century1
- Jārūdī, Nāṣir ibn Muḥammad, active 18th century1
- Leather doublures1
- Loans (Islamic law)1
- Marriage (Islamic law)1
- Mathematics, Arab1
- Menstruation--Religious aspects--Islam1
- Obligations (Law)1
- Penance (Islamic law)1