مکتوبات شیخ فقیر الله علوی شکارپوری، فارسی
Maktubat (letters) of the great Naqshbandi shaykh of Sindh, Hazrat Haji Faqirullah Alvi Shikarpuri Naqshbandi (d. 1195 AH), in Persian
This is one of the best books written on Sulook and Tasawwuf written by any of the later scholars of Sufism. Some shaykhs have compared it to the books of Imam Ghazali, considering this as better than Kimya-e-Saadat. It discusses many topics in traditional Sufism and a large section is dedicated to various practices of Sufi tariqas and their chains of authorization (Isnaad).