Conference of the Birds
, masterpiece of Persian poet and mystic Attar, fully named Farid ad-Din Attar, allegorically surveys Sufism.
From Nishapur, an immense influence of better known pen, "the perfumer," of Abū amīd bin Abū Bakr Ibrāhīm, a Muslim theoretician and hagiographer, lasts.
https://en.wikipedia.org/wiki/Attar_o...