Shah Shahidullah Faridi
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(né John Gilbert Lennard) was a British Muslim Convert, born to a Christian family. 
He embraced Islam after reading "Kashf al-Mahjub" (The Unveiling of the Veiled), the classical treatise on Sufism written by Ali ibn Uthman al-Hujwiri. Though having been born and raised in a wealthy English family he left his home in search of a Sufi shaikh. In India, he eventually met the Chishti Sabri shaikh, Syed Muhammad Zauqi Shah and pledged allegiance to him.
He wrote Inner Aspects of Faith. He also compiled Part Two of "Tarbiatul Ushaq" ("The Training of Divine Lovers"), Syed Mohammad Zauqi Shah, 1425/2004, pub. A.S.Nordeen, Kuala Lumpur, ISBN 983-065-185-1. A brief biography of his, published recently in Urdu called "Talash e Haqq rudad." by Ahmed Ghazali Shaheedi, printed by M. Naeem Hashmi, Saudabad Malir Colony Karachi.
- _________ (1970) Everyday practice in Islam Sufi Publishers, Karachi, OCLC 246753, new edition (1979) Mahfil-e-Zauqia, Karachi, OCLC 12205889
- _________ (1976) Spirituality in religion OCLC 28858132
- _________ (1979) Inner aspects of faith Mehfil-e-Zauqia, Karachi, OCLC 7706353, new edition (1985) Nur Academy, Delhi, OCLC 59078626
- _________ (1981) Daglig praksis Da'wa, ISBN 87-87728-22-2
- Islamic Sufism Unbound: Politics and Piety in Twenty-First Century Pakistan By Robert Rozehnal, pg.60