Saʿd al-Dīn al-Ḥamuwayī

Saʿd al-Dīn Muḥammad ibn al-Muʾayyad ibn Ḥamuwayh al-Ḥamuwayī al-Juwaynī was a Persian Ṣūfī shaykh from a prominent Ṣūfī family. He belonged to the order of the Kubrāwiyya. A prolific writer, he is credited with at least 47 works plus poetry. He was a noted mystic and much of his writing is esoteric and numerological.