Source: The Sayings and Teachings of the Great Mystics of Islam (2002), p. 117
Najm ad-Din Kubra was a 13th-century Khwarezmian Sufi from Khwarezm and the founder of the Kubrawiya, influential in the Ilkhanate and Timurid dynasty. His method, exemplary of a "golden age" of Sufi metaphysics, was related to the Illuminationism of Shahab al-Din Yahya ibn Habash Suhrawardi as well as to Rumi's Shams Tabrizi. Kubra was born in 540/1145 and died in 618/1221. Wikipedia
Source: The Sayings and Teachings of the Great Mystics of Islam (2002), p. 117