Hazrat Abul Hassan Ali Ibn Usman al-Jullabi al-Hajvery al-Ghaznawi (ابوالحسن علی بن عثمان الجلابی الھجویری 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 Persian Sufi and scholar in the 11th century. He significantly contributed to the spreading of Islam in South Asia.
He was born around 990 CE near Ghazni, Afghanistan, during the Ghaznavid Empire and died in Lahore (in present-day Punjab, Pakistan) in 1077 CE. His most famous work is Revelation of the Veiled (Kashf Al Mahjub) (کشفُ المحجوب), written in the Persian language. The work, which is one of the earliest and most respected treatises of Sufism, debates Sufi doctrines of the past.
This app includes complete urdu text of His most famous work Kashaful Mehjoob.