About Rabia Basri
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.
Biography source:
Wikipedia
