Vikipedi
Şebüsterî
Şebüsterî ( 1288, Şebister – ö. 1320, a.y.)TDV İslam Ansiklopedisi, c: 38; sayfa: 400, madde yazarı: Adnan Karaismailoğlu, İranlıLeonard Lewisohn, C. Shackle, "ʻAṭṭār and the Persian Sufi tradition: the art of spiritual flight", I.B. Tauris, 2006. pg 40Jon Robertson, "Fire and light: an off-road search for the spirit of God", Celestial Arts, 2006. pg 206: "The great thirteenth-century Persian Sufi poet Mahmud Shabistari"Gai Eaton, "Islam and the destiny of man", SUNY Press, 1985. pg 53: "According to the Persian poet Mahmud Shabistari: "The Absolute is so nakedly apparent to man's sight that it is not visible" mutasavvıf ve şair.