On the sale of ivory commissioned to ʿUmar Kasha and the buying of military equipment with the profit from this sale.
- This text has been edited in Muḥammad Ibrāhīm Abū Salīm, Muḥarrarāt ʿUthmān Diqna, Khartoum, Markaz Abū Salīm li-l-dirāsāt, 2004. See letter 196
15/08/1307