" For Sufis, the primary zikr, or practice of divine remembrance, is La ilaha illa'Llah, which means in Arabic, "no god but God." Azar Kayvan taught his disciples to recite Nist hasti magar Yazdan, which means in Persian "no existence but God." (p. 93) "

― , Mingled Waters: Sufism and the Mystical Unity of Religions