- Bail (Islamic law)1
- Bajāʼī, ʻAbd al-Raḥmān ibn Aḥmad, -1384 or 1385. Muqaddimah1
- Bakrī, Abū al-Ḥasan ibn Jalāl al-Dīn, -approximately 1543. Ḥizb1
- Balkan Peninsula1
- Bank deposits (Islamic law)1
- Bayezid I, Sultan of the Turks, approximately 1360-14031
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, d. 1286? Lubb al-albāb fī ʻilm al-iʻrāb1
- Bektashi1
- Bible. Revelation1
- Bidāyat al-mubtadī (Marghīnānī, ʻAlī ibn Abī Bakr)1
- Bio-bibliography1
- Biqāʻī, Ibrāhīm ibn ʻUmar, 1406 or 1407-1480. Tahdīm al-arkān1
- Birgivî Mehmet Efendi, approximately 1522-1573. Uṣūl al-ḥadīth1
- Books and reading1
- Bosnian language1
- Bread1
- Buhūtī, Manṣūr ibn Yūnus, d. 1641. Dalīl al-ṭālib li-nayl al-maṭālib1
- Buhūtī, Ṣāliḥ ibn Ḥasan, -1709 or 1710. ʻUmdat al-fāriḍ1
- Building laws (Islamic law)1
- Bulgaria1