CRL has acquired several components of the collection of Arabic Manuscripts in the British Library. These include:

• Ḥadīth: Collections of traditions and statements of Muhammad, along with commentaries and critical works. Catalog Record.
• Kalām: theological debates and texts on the Qur'an. Catalog Record.
• Islamic mysticism & philosophy: works of Moslim philosophers in all fields of philosophical study. Subsets include:
  • Prayers & sermons. Catalog Record.
  • Mysticism & pietics. Catalog Record.
  • Philosophy. Catalog Record.
  • Ethics and polity. Catalog Record.