- Sittūn masʼalah fī al-fiqh (Zāhid, Aḥmad ibn Muḥammad)1
- Siwāsī, Muṣṭafá ibn Abī Bakr, d. 1824 or 5. Mafātīḥ al-durrīyah fī ithbāt al-qawānīn al-Darīyah1
- Sleep--Religious aspects--Islam1
- Soul1
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- Southern Arabia1
- Space and time--Religious aspects--Islam1
- Spain1
- Sphere1
- Spiritual life--Islam1
- Sufi literature1
- Sufi poetry, Persian1
- Suhrawardī, ʻUmar ibn Muḥammad, 1145-1234. ʻAwārif al-maʻārif1
- Sujāʻī, Aḥmad ibn Aḥmad, -1783? ʻUqūd al-Maqūlāt1
- Sujāʻī, Aḥmad ibn Aḥmad, -1783? ʻUqūd al-maqūlāt1
- Sullam al-ʻulūm (Bahārī, Muḥibb Allāh ibn ʻAbd al-Shakūr)1
- Sultans1
- Sumtī, Yūsuf ibn Khālid1
- Sunna1
- Sunnites--Controversial literature1