- Rasāʼil (Anṣārī, Murtaḍá ibn Muḥammad Amīn)1
- Rasāʼil (Ikhwān al-Ṣafāʼ)1
- Rawḍah al-bahīyah fī sharḥ al-Lumʻah al-Dimashqīyah (Shahīd al-Thānī, Zayn al-Dīn ibn ʻAlī)1
- Reading1
- Rifāʻī, Aḥmad ibn ʻAlī, 1106?-11821
- Risālah al-waḍʻīyah (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Rāmizah fī ʻilmay al-ʻarūḍ wa-al-qāfiyah (Khazrajī, ʻAbd Allāh ibn ʻUthmān)1
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798- Nibrās al-hudá1
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798-1873. Ghurar al-farāʼid1
- Sabzavārī, Hādī ibn Mahdī, 1797 or 1798-1873. Laʼālī al-muntaẓimah fī ʻilm al-manṭiq wa-al-mīzān1
- Sacred books1
- Samarqandī, Muḥammad ibn Ashraf, active 13th century. Ashkāl al-taʼsīs1
- Sanūsī, Muḥammad ibn Yūsuf, approximately 1427-approximately 1490. Umm al-barāhīn1
- Seals1
- Sermons1
- Shammah fī al-Mīzān1
- Shams Maghribī, Muḥammad Shīrīn, 1349?-1406 or 1407. Jām-i Jahānʹnumā1
- Shamsīyah (Qazwīnī, ʻAlī ibn ʻUmar)1
- Sharḥ Shamsīyah (Quṭb al-Taḥtānī, Muḥammad ibn Muḥammad)1
- Sharḥ al-Ishārāt (Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad)1