پير صدر الدين به اسماعيلي سلسلي جي هڪ ڪڙي آهي، جنهن پنهنجي دور ۾ ڪافي ڪم ڪيو ، پاڻ ان وقت سنڌ ۾ آيو جڏهن سلسله اسماعيليه جي 29ھون امام شاه قاسم 771 هجري ڌاري وفات ڪئي ۽ سندس فرزند امام احمد اسلام شاه جي گادي تي ويٺو، احمد اسلام شاه پنهجي پاران پير صدرالدين کي (وصي محمد) جو لقب ڏيئي سنڌ لاءِ مبلغ مقرر ڪيو. پير صدرالدين 720 ھجری ڌاري سبزوار ۾ تولد ٿيو سندس والده جو نالو نور فاطمه بنت سيد ابراهيم سبزواري هو. پاڻ 12 رجب المرجب 819 ھجری ڌاري وفات ڪيائين سندس مزار اُچ ۾ آهي جتي سنڌ جي خواجن مٿس روضو تعمير ڪرايو آهي.
بج نرينن: (knowledge or cognition of God). In this work the Pir deals with the ways and means of attaining union with the divine Light.
اراڌ: (Worship or Adoration). It is a doxology. . In the later stages it develops into adoration of Hazrat Ali who manifested himself in every age ere the creation of aught.
ونود : (Merriment or bliss). Adoration of God who created the universe and ends in supplication to Hazrat Ali.
گيانتري: (The work composed the supplant Gayeetri the sacred prayers of Hindus). It exhorts the followers to give up all the past things of Hinduism and adopt Islam.
Athar Ved: It is an interpretation of the Ather Ved - the last of the four Vedas of the هندس. It is chiefly the adoration of Naklank.
صورت سماچار: (Information about appearance). It maintains giving illustration, that two good things are rarely found to co-exist simultaneously. It also gives descriptive comparison and discrimination between good and evil, admonitions to sinners, code of ethics, greatness of a true preceptor, etc.
گرڀاوالي.- (Smaller) : (Secrets). It is an imaginary conversation between Shankar and Parvati about the universe, its contents, etc.
بڌه اوتار : This deals in detail about the story of the 9th incarnation i.e., Buddha of Vishnu.
داس اوتار (Smaller:) Deals with ten incranations of Vishnu and finally comes to Islam.
To Munivarbhai Moti or Momin Chitveni (Knitting up of a Momin's mind or indication of the mind of a Momin): Deals with the creation of the world, the reason of Vishnu's taking incarnation, ethics, etc.,
باوان گهاٽي: (Fifty-two passes): Deals with imaginary fifty- two passes where the angels will question a soul about its different acts in the world.
Girbhavali (bigger): Deals with a number of esoteric matters. (An enlargement of No. 7).
کات نرنجن: (Six Nirinjans) deals with the creation of the universe, true way of adoring God, beauties and greatness of Islam and Satpanth etc.
کات درشن: (Six Darshans) Darshan is a common designation assigned to the six schools of Hindu Philosophy. It touches various matters of Satpanth and can well be termed an encyclopaedia of Satpanth and Khojki literature.
Bawan bodth, so Kirya and Sahi Samrani: (52 admonition. 100 rituals and real remembrance). Deals with behaviour, morality, cleanliness etc.
Saloko (Smaller) (a Collection of Verses): Gives comparison and discrimination between good and bad. Giving an example prayers, devotion, speaking truth etc. Warns against hypocrisy and idolatry.
دعا: (Prayer). It is the prayer recited by the Khojas. Contains some verses from the Quran, names of Imams, names of Pirs, supplications etc.. etc.
گنان کان: (Hymns containing knowledge) There are more than 250 ginans dealing with a wide range of themes e.g., ethics, morality, devotion, religious rites, religious stories etc., etc.