- Qāḍīʹzādah, Mūsá ibn Muḥammad, -approximately 1436. Sharḥ al-Jighmīnī1
- Qūshjī, ʻAlī ibn Muḥammad, -1474 or 1475. Fatḥīyah1
- Rabīʻ al-abrār (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Ramlī, Aḥmad ibn Aḥmad, -1563 or 1564. Shurūṭ al-maʼmūm wa-al-imām1
- Ramlī, Muḥammad ibn Aḥmad, 1513-1596. Sharḥ al-Sittīn masʼalah1
- Rasāʼil (Anṣārī, Murtaḍá ibn Muḥammad Amīn)1
- Real property (Islamic law)1
- Reasoning1
- Rebacking1
- Religion1
- Religion and politics1
- Religions1
- Religious calendars1
- Religious minorities--Legal status, laws, etc.1
- Remboîtage1
- Repentance--Islam1
- Reproduction1
- Revelation--Islam1
- Riddles1
- Riddles, Persian1