- Rasāʼil (Anṣārī, Murtaḍá ibn Muḥammad Amīn)1
- Rawḍah al-bahīyah fī sharḥ al-Lumʻah al-Dimashqīyah (Shahīd al-Thānī, Zayn al-Dīn ibn ʻAlī)7
- Reading1
- Real property (Islamic law)2
- Recitations20
- Religious calendars--Islam1
- Religious life1
- Religious life--Islam16
- Rent (Islamic law)2
- Resurrection (Islam)8
- Rhetoric1
- Riddles, Arabic1
- Riddles, Persian1
- Risālah (Ibn Abī Zayd al-Qayrawānī, ʻAbd Allāh ibn ʻAbd al-Raḥmān)1
- Risālah al-waḍʻīyah (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Rodents--Religious aspects--Islam1
- Russia (Federation)--Dagestan3
- Rāfiʻī, ʻAbd al-Karīm ibn Muḥammad, 1162-1226. Muḥarrar1
- Rāfiʻī, ʻAbd al-Karīm ibn Muḥammad, 1162-1226. ʻAzīz ʻalá al-Wajīz2
- Rīzawī, ʻUthmān Ṣabrī ibn Ismāʻīl, active 19th century. Risālah al-jadīdah fī al-waḍʻ1