- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām1
- Ishrāqīyah1
- Islam--Customs and practices1
- Islamic civilization1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Tashyīd al-Qawāʻid1
- Iẓhār al-asrār (Birgivî Mehmet Efendi)1
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- Logic, Medieval1
- Magic squares1
- Maṣābīḥ al-sunnah (Baghawī, al-Ḥusayn ibn Masʻūd)1
- Mevleviyeh1
- Mihrabs1
- Moon1
- Mosques1
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- Muḥammad, Prophet, -6321
- Palmistry1
- Pandnāmah (ʻAṭṭār, Farīd al-Dīn)1