“At-tawheedu isqāt al-idhāfāt”, which is a definition of tawheed, that states “tawheed is to deny the attributes” is a concept of tawheed belonging to high mysticism. One of the evaluations made about the tawheed of “isqāt al-idhāfāt” attributed to Junaid Baghdadi, is that it is the tawheed of true tawheed and havâssu'l-havâss. Isqāt al-idhāfāt tawheed is also presented as a benchmark, which is an important criterion of true tawheed in sufi literature. The fact that havâssu'l-havâss is a definition of tawheed is sufficient evidence to express its difficulty. It is for this reason that it is said that “isqāt al-idhāfāt, which is the perfection of tawheed, is one of the intensified and difficult tasks of arbāb-i tahqīq”. When the isqāt al-idhāfāt tawheed is evaluated within the framework of the Sunni mysticism and unity of existing paradigms, some interpretation differences arise. This definition of tawheed has been mentioned a lot in the verse and prose texts of classical Turkish literature. When isqāt al-idhāfāt tawheed, (which has different interpretations), is used for human beings and other creatures, it does not give a real effect to bad thoughts, causes, and reduces the existence of creatures to the level of imagination and does not give them the rank of real existence (wujud-u-genuki); When used for the divine essence, it is based on the concept of Ahadiyet. As far as it is known, Farid al-Din Attar was the first person to use the term “isqāt al-idhāfāt” in poetry. Attar uses the term isqāt al-idhāfāt in Asrār-nāmeh's tawheed ode with the phrase “که التوحید اسقاط الإضافات / Ki al-tawheedu isqāt al-idhāfāt”. This usage has been quoted by both Persian literature poets and classical Turkish literature poets. The concepts of tajrīd, tefrīd, abandonment and unity of tawheed-i misākī have a very close connection with the concept of isqāt al-idhāfāt.