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- Yehudah ben Seʹadyah. 11th century1
- Yehudah ben Sigmar, 11th century1
- Yemen (Republic)--Zabīd1
- Yemen (Republic)--Ḥimyar1
- Yunus Emre, -1320?1
- Zaydīs--Customs and practices1
- Zaydīyah1
- Zaylaʻī, ʻUthmān ibn ʻAlī, -1342 or 1343. Tabyīn al-ḥaqāʼiq sharḥ Kanz al-daqāʼiq1
- Zaynab bint ʻAlī ibn Abī Ṭālib1
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- Zubad (Ibn Raslān al-Ramlī, Aḥmad ibn Ḥusayn)1
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- Zīnūn al-kabīr1
- alchemy1
- alphabets (symbols)1
- anthologies1
- blind stamping1