Original: According to the Fihrist of ibn al-Nadim , the Mesopotamian prophet Mani , the founder of Manichaeism , was brought up within the Elkasaites ( Elcesaites or Elchasaite ) sect .
Simplified: According to the Fihrist of ibn al-Nadim , Mani , the founder of Manichaeism , was brought up within the Elkasaites ( Elcesaites or Elchasaite ) sect .