- Ramlī, Aḥmad ibn Aḥmad, -1563 or 1564. Shurūṭ al-maʼmūm wa-al-imām1
- Rawḍah al-bahīyah fī sharḥ al-Lumʻah al-Dimashqīyah (Shahīd al-Thānī, Zayn al-Dīn ibn ʻAlī)1
- Reform Judaism1
- Relations1
- Rifāʻī, Aḥmad ibn ʻAlī, 1106?-11821
- Rites and ceremonies1
- Ropshitser, Naphtali Ẓevi, 1760-18271
- Rufina, Saint, -approximately 2871
- Russia1
- Saints musulmans--Biographies--Ouvrages avant 18001
- Saints--Cult1
- Salat1
- Samarqandī, Abū al-Qāsim ibn Abī Bakr, active 15th century. Risālah al-Samarqandīyah1
- Saudi Arabia1
- Saudi Arabia--Medina1
- Savelli, Troilo, -15921
- Sayyidah Nafīsah, 762 or 763-823 or 8241
- Schools1
- Scotland1
- Scrolls1