This article is dedicated to the brief scientific analysis of the paragraph “Tasrifu-l-asma” from the work “Muqaddamatu-l-adab” by Mahmood Zamahshary. As this part was dedicated to the complicated sphere of the Arabic language grammar, it was extentionally used as an essential sourse of reference. It is known as “Haraka:tu-l-i’rab” due to the lines it is beginning with. This manual is dedicated to the declension of nouns and consists of 32 parts. The manual traditionally begins with “Basmala” and then a brief explanation of the “i’rab” term in the Arabic language is given.