Knowledge by presence (Persian: علم حضوری, transliterated ilm-e-huzuri[citation needed]) or consciousness is a degree and kind of primordial knowledge in the Illuminationist school of Islamic philosophy. This knowledge is also called the illuminative doctrine of knowledge by presence or al-ilm al-huduri al-ishraqi.[1] This theory is attributed to Shahab al-Din Suhrawardi. According to this theory self knows himself directly through a kind of cognition.[2]