40 Hadith on Sufim is an excellent English rendition of the Arabic original (also included), authored by Shaykh Abu Abdur-Rahmān al-Sulamī (d.412 AH / 1021).
The Darqawi Way – Letters of the great Sufi master Shaykh Mawlay al-Arabi ad-Darqawi (d.1239 AH) written to his Fuqara
Risalah Qushairiyah, English translation
Al-Qushayri's Epistle on Sufism
By Imam Abu'l-Qasim al-Qushairi
Mawlid Rasul Allah sallAllahu alaihi wa-Sallam
Authored by Imam Imaduddin Ibn Kathir Damishqi ash-Shafii (d.774H)
Foreword and Hadith documentation by Prof. Dr. Syed Aleem Ashraf Jaisi, Dept. of Arabic, Maulana Abul Kalam National Urdu University, Hyderabad, India
English translation by Basharath Ali Siddiqui Quadri Ashrafi
رشحات عين الحياة (عربي)
مولانا علي بن حسين الصفي الکاشفي
Arabic translation of the famous book about the biographies of Naqshbandi masters, specially Khwaja Ubaydullah Ahrar.
Written by Mawlana Ali ibn Hussain Safi Kashefi Herati.
Translated into Arabic by Shaykh Muhammad Murad bin Abdullah
Farhatul-ul-Qulub fi Madh-in-Nabi al-Mahbub (Urdu), with Quranic ayaat and Hadiths about the celebration of Mawlid (Milad). By Dr. Muhammad Tahir-ul-Qadri.
Mawlid-un-Nabi Ind al-Aimmati wal-Muhadditheen (Urdu) by Dr. Muhammad Tahir-ul-Qadri