Rābiʼa al-ʼAdawiyya al-Qaysiyya or Rabia Basri was a poet, one of the earliest Sufi mystics and an influential religious figure from Basra. Her full name is said to be Rābiʿa bint Ismāʿīl; her kunya was Umm ʿAmr, her wilāya was al-ʿAtakiyyah, and her nisba was al-ʿAdawiyya or al-Qaysīyya because she was a freed slave of the tribe of Qays ibn ʿAdī. She is regarded as one of the three preeminent Qalandars of the world. c. 710 – 801; died at about 91. Alive at the same time as Charlemagne, Muḥammad ibn Musa al-Khwarizmi, Ādi Shankara, Abū Ḥanīfa, and Li Bai. Wiki link