Abstract: "Commentary on the Kitāb al-muʼāmalāt of Ibn al-Muṭahhar al-Ḥillī's Qawāʻid al-aḥkām fī maʻrifat al-ḥalāl wa-al-ḥarām."Binding note: Limp black leather with blind-stamped central floral design, pendants, and fillets; blue paper doublures.Ms. codex.Title from leaf 1a.Physical description: Generally 30 lines per page; written in small, cramped naskh with elements of nastaʻliq in black on glazed, laid European paper. Catchwords. Mild staining and a few repairs.Origin: 23 Muḥarram 1255 H 8 April 1839, by ʻAlī ibn Ḥusayn al-Qazwīnī (leaf 57a).Incipit: الحمد لله الذي اشتق نور الوجود من ظلمة العدم