“Hazrat Sultan-ul-Auliya Khwaja Ubaidullah Ahrar Naqshbandi” is an important biographical work by Hafiz Maulvi Muhammad Taqi Anwar Alawi Kakorwi, detailing the life, spirituality, and monumental contributions of Hazrat Khwaja Ubaidullah Ahrar Naqshbandi to the field of Sufism. This book introduces readers to the life, teachings, and spiritual blessings of this great luminary of the Naqshbandi spiritual order, providing authentic insights for those interested in the history of Sufism and the saints of Islam. It serves as a valuable reference book for students, researchers, and readers passionate about Islamic mysticism and biographical literature.