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- Rāzī, Fakhr al-Dīn Muḥammad ibn ʻUmar, 1149 or 1150-1210. Lubāb al-Ishārāt2
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- Samarqandī, Muḥammad ibn Ashraf, active 13th century. Ashkāl al-taʼsīs2
- Samarqandī, Muḥammad ibn Ashraf, active 13th century. Risālah fī ādāb al-baḥth2
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- Satellites--Phases2
- Shaykhī--Doctrines2
- Shurūṭ al-ṣalāh2
- Shīʻah2
- Signification (Logic)2
- Sin--Islam2
- Suyūṭī, 1445-15052
- Symbolism2
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- Tenth of Muḥarram2
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