al-Risālah al-nayrūzīyah الرسالة النيروزية Avicenna ابن سينا
Scope & Content:
Treatise on the mysterious disconnected letters (الحروف المقطّعات or فواتح) with which some sūrahs of the Qurʼān begin by Abū ʻAlī al-Ḥusayn ibn ʻAbd Allāh (أبو علي الحسين بن عبد الله), known as Ibn Sīnā (ابن سينا, latinised as Avicenna, d. 1037).