A book entitled al-Jawhara al-Bahiyya al-Ahmadiyya fi Sharh al-Wasiyya
al-Muhammadiyya (The Sparkling Jewel in the Explanation of the Mohammedan Will). Originally written in the Turkish language, the book explains the Prophet Muhammad's
Sunna, and was published in 1240 AH/ 1825 AD, a time when Nicola al-Masabki was in charge of the Bulaq Press. The book had earlier been printed in the Turkish city of Astana in 1219 AH/ 1805 AH, and translated into the French by Garcin de Tassay.