Analysis the style of "Rasael-ol-ejaz"based on Layer stylistics (phonetic, syntactic, rhetorical and ideological layer)

“Rasael al-Ijaz” or “Ijaz Khosravi” is a valuable work of Amir Khosrow Dehlavi, which was written in the early eighth century in the field of writing and composition. Considering that no revised correction of this work has been made in our country so far and also considering the importance and position of this work in the field of literary works of technical prose, on the part of the researchers' lack of attention to this precious work, the authors decided that Research the stylistics of the work based on layered stylistics. Due to the breadth of the subject, in the present study, the analysis of three levels of phonetic, rhetorical and ideological has been proposed.

This research has been done by analytical-descriptive method.

Based on the findings of this study, the most prominent stylistic coordinates of the work at the phonetic level are abundant application of rhyme and paronomasia, acrostic and parallelism, repetition types (alliteration and assonance) that have increased the beauty and harmony of speech in terms of phonetic relations. The most prominent Stylistic features of “ejaz Khosravi” in the field of rhetoric can be called the observance of textual appropriateness and coherence. Types of ambiguity, including the ambiguity of proportionality, the ambiguity of contradiction, and the ambiguity of translation, or in the words of Amir Khosrow, " tarjomat-al-lafz " and “zemn –al- lafz”, can in fact be considered as examples of lexical coherence in several places in his book.

Therefore, it can be concluded that the author of “Rasael al- Ijaz” has expressed a unique writing style in this work, which is based on the observance of appropriateness and coherence. The use of examples of coherence and continuity such as types of ambiguity, as well as the invention of new figurative of device in this field, such as "tarjomat-al-lafz " and "zemn- al-lafz" by Amir Khosrow and their abundant use, can indicate the importance of proportionality between the components of the text.