Abu Hafs Umar al-Suhrawardi
Other transliterations: Shaykh Shihab al-Din ‘Umar al-Suhrawardi, Shaykh 'Abu Hafs al-Suhrawardi, Hadrat Shaykh Shihab al-Din `Umar b. `Abd Allah al-Suhrawardi.
He wrote the 'Awarif el-Maarif, the "Gifts of Deep Knowledge". This book was translated into English by Henry Wilberforce-Clarke and published as "A Dervish Textbook" in 1891. It was reprinted by Octagon Press in 1980.
- Muḥammad Kamāl, Mulla Sadra's Transcendent Philosophy, Ashgate Publishing Inc, 2006, ISBN 0-7546-5271-8, p. 12.
- John Renard, "Historical dictionary of Sufism ", Roman & Littlefield, 2005. pg xxviii. excerpt: "Abu 'n-Najib 'Abd al-Qahir as-Suhrawardi, Persian shaykh and author, and scholar who thought Ahmad al-Ghazali, Najm al-Din Kubra and Abu Hafs 'Umar as-Suhrawardi
- Qamar al-Huda, "Shahab al-Din Suhrawardi" in Josef W. Meri, Jere L. Bacharach, Medieval Islamic Civilization: L-Z, index Volume 2 of Medieval Islamic Civilization: An Encyclopedia, Josef W. Meri, ISBN 0-415-96690-6. pp 775-776: "Shahab al-Din Abu Hafs 'Umar al-Suhrawardi belonged to a prominent Persian Sufi family and was responsible for officially organizing the Suhrawardi Sufi order"
- Ohlander, Erik, Sufism in an Age of Transition: Umar al-Suhrawardi and the Rise of the Islamic Mystical Brotherhood (Leiden, Brill, 2008) (Islamic History and Civilization, 71).