- Samarqandī, Muḥammad ibn Ashraf, active 13th century. Risālah fī ādāb al-baḥth1
- Samarqandī, Muḥammad ibn Maḥmūd. Sharḥ al-Qaṣīdah al-fāʼiḥah fī tajwīd al-Fātiḥah1
- Saudi Arabia--Hejaz1
- Science, Medieval1
- Shahīd al-Awwal, Muḥammad ibn Makkī, 1333 or 1334-1380. Risālah al-naflīyah1
- Sharāʼiʻ al-Islām (Muḥaqqiq al-Ḥillī, Jaʻfar ibn al-Ḥasan)1
- Sharḥ al-ʻAqāʼid al-ʻAḍudīyah (Dawwānī, Muḥammad ibn Asʻad)1
- Sharḥ Īsāghūjī (Kātī, Ḥusām al-Dīn al-Ḥasan)1
- Shiites1
- Shrines (Islamic law)1
- Shādhilīyah1
- Shāfiʻī, Muḥammad ibn Idrīs, 767 or 768-8201
- Shīʻah--Customs and practices1
- Shīʻah--Doctrines--Sources1
- Sibṭ al-Māridīnī, Badr al-Dīn Muḥammad ibn Muḥammad, 1423- Risālah fī bayān al-ʻamal bi-al-ālah allatī tusammá bi-al-Rubʻ al-mujayyab1
- Signification (Logic)1
- Silence--Religious aspects--Islam1
- Smoking (Islamic law)1
- Soul--Islam1
- Spalatin, Georg, 1484-15451