- Seliḥot1
- Sharḥ Bānat Suʻād (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)1
- Sharḥ al-ʻAqāʼid al-Nasafīyah (Taftāzānī, Masʻūd ibn ʻUmar)1
- Shaybānī, Muḥammad ibn al-Ḥasan, approximately 750-804 or 8051
- Shaykhī--Doctrines1
- Shīʻah--Customs and practices1
- Silence--Religious aspects--Islam1
- Sirāj Allāh, Muḥammad, active 19th century. Sirāj-i anjan.--Daftar 11
- Smoking (Islamic law)1
- Solitude--Religious aspects--Islam1
- Solomon, King of Israel, in the Qurʼan1
- Soul--Islam--History of doctrines1
- Spinning1
- Spirit1
- Spiritual life--Islam1
- Sprinkled papers1
- Sufism--Terminology1
- Suhrawardī, ʻUmar ibn Muḥammad, 1145-1234. ʻAwārif al-maʻārif1
- Sumtī, Yūsuf ibn Khālid1
- Sunan (Abū Dāʼūd Sulaymān ibn al-Ashʻath al-Sijistānī)1