Hilye, both as the literary genre and as the graphic art form, originates from shama'il, the study of Muhammad's appearance and character.
Among other descriptive Shama'il text are the Dala'il al-Nubuwwah of Al-Bayhaqi, Tarih-i Isfahan of Abu Naeem Isfahani, Al-Wafa bi Fadha'il al-Mustafa of Abu'l-Faraj ibn al-Jawzi and Al-Shifa of Qadi Ayyad are the main shemaa-il and hilya books [REF].