What is "jabbarkhel"

Jabbarkhel or Jabbar Khel, sometimes spelled Jabar Khel, are a leading landowning clan of the Ahmadzai tribe of Pashtun people and consist of more than fifteen hundred families. The tribe is believed to have descended from an Ahmadzai leader named Jabbar. They are believed to have been located primarily in the region of Qabr-i-Jabbar/ Khaki Jabbar District.