بن عثمان الجلابی الهجویری الغزنوی ) or Abul Hassan Ali Hajvery (sometimes spelled Hujwiri, Hajweri, Hajveri), also known as Daata Ganj Bakhsh ( Persian / Punjabi : داتا گنج بخش , which means the master who bestows treasures) or Daata Sahib ( Persian / Urdu : داتا صاحب ), was a