Before Khajeh Eshaq Khuttalani, he also acquired the customs from Shah Qasem-e Anvar (died 1433 CE), but his level of perfection and completion has been achieved under Khajeh Eshaq Khuttalani; Hence, his proof of authority is mentioned in two ways: One, through Shah Qasem-e Anvar, who reached Safi-ad-din Ardabili (died 1334 CE) through two intermediaries. And another, through Khajeh Eshaq Khuttalani.[25][26] After the death of Khajeh Eshaq Khuttalani, Seyyed Abdullah Borzeshabadi guided and succored the seekers for nearly thirty years and finally passed away in the early second half of the ninth century AH (1446 CE onwards). Seyyed Abdullah Borzeshabadi has compiled many treatises, among which "Kamaliyeh treatise" (about etiquettes of Irfan and Sharia)[27] can be mentioned.