Four Gems of Tasawwuf comprises:
1. An introduction to Tasawwuf based on the famous ten mabadi’ introductory principles, which is from the Shaykh’s Iqadh al-Himam, his commentary on the Hikam of Shaykh Ahmad ibn ‘Ata’illah al-Iskandari, as well as the first aphorisms;
2. His commentary on the Salat of Shaykh ‘Abd as-Salam ibn Mashish in asking for blessings on the Messenger of Allah ;
3. His commentary on the Khamriyyah of Shaykh Ibn al-Farid;
4. And his book on the Divine Decree, in which there is a chapter exploring the issues of contagion and plague, from both the perspectives of haqiqah and shari’ah.
Shaykh Ahmad ibn ‘Ajibah (died 1224 AH/1809 CE) was a consummate scholar of the deen of Islam, who wrote widely on tafsir and other topics. He united in himself the sciences of the shari’ah, tariqah and haqiqah, and was himself a realised Sufi.