1. Princeton University, Islamic Manuscripts Garrett no. 526H DS ID: DS2788 Title: Sharḥ al-Lumaʻ fī ʻilm al-ḥisāb Author: Aḥmad ibn Mūsá Ibn ʻAbd al-Ghaffār Date: 4 Shawwāl 963 [August 21, 1556