 Iltutmish was a devout Muslim, and spent considerable time praying at night.His court poet Amir Ruhani describes him as a "holy warrior and Ghazi".He revered several Sufi saints, including Qutbuddin Bakhtiar Kaki, Hamiduddin Nagauri, Jalaluddin Tabrizi, Bahauddin Zakariya, and Najibuddin Nakhshabi.