Halliday’s systemic functional theory is one of the most important theories in text linguistics that cateres to formation of language and texture of text and forms. It is based on three meta functions: ideological, interpersonal and textual. This theory is considered a suitable model for the stylistics of text discourse and it can help to understand all aspects of author's discourse style. The present research was investigated with an analytical method and systemic functional linguistics approach on 42th sermon of Nahj al-Balagha based on the ideological and textual meta-functions in order to achieve the imam's discourse style and deeper understanding of the subtleties and hidden values ​​in the sermon. The results showed that the extent to which imam uses all kinds of processes is in harmony with the content of sermon and because of the content of sermon, which is related to mental affairs such as following the passions and long wishes, and knowing the most important differences between this world and the hereafter. Mental processes (0.050) and relational processes (0.031.25) have the biggest role in shaping the discourse of the sermon. From the point of view of textual meta-function, imam has expanded the concepts of sermon using structural factors (composite initiator (0.088), mark (0.075), creating new and old information (0.050) and has created a coherent connection between different clauses of the sermon by applying techniques of non-structural factors, grammatical, relational and vocabulary coherence. In fact, imam has established discourse style of the sermon according to the situational context and his knowledge of the audience to prevent their pride and sense of worldliness after victory.

Collecting and analyzing Imam Ali’s sermons of Friday prayers and feasts is the main purpose of this paper. 17 sermons have been collected. These sermons are mainly taken from old Shi`I and Sunni hadith sources. In this paper authors also deal with figurative language used in sermons, length and content analysis of sermons and describe important features of these sermons. Some statements of sermons are repeatedly found in the whole body of these sermons which is an indication of importance attached to them by Imam Ali, peace be upon him. Some other topics of this paper are: Imam Ali’s efforts in holding Friday prayers in congregation, events and circumstances which caused the formation of these sermons, number of sermons, literature of sermons and etc.

The “Jihad” is one of Imam Ali’s most famous sermons. In its first part، the importance of jihad and its significant effects have been described in a very eloquent style، and the results of leaving it have been also explained for nations. In sermon’s second part، Imam Ali (peace be upon him) harshly blames the people of Kufa، and then gives notice of traumatic event of Sofian Ghamedi’s attack to the border city of Anbar، the martyrdom of Hessan bin Hessan، his brave and loyal representative، his full readiness for presence in war، and a background of his combat experiences in early Islam in a way that the extraordinary epic spirit of the sermon affects every listener or reader. A very close relation can be distinguished between what occurs in the words، phrases and meanings with the mind and experience of sermon announcer in speech manner of the sermon. The overall context of the sermon is about Kufi’s reproach in a way that the reproaches get more intensified word by word. The use of simile، metaphor، irony، and other literary techniques of meaning and expression; and of course the use of rhyme، pun and inner balance of the text are the things increase the beauty of the sermon، something which would be discussed in this study.

This article studies Prophet Muhammad’s sermons on Fridays, and the Two Feasts: Day of Sacrifice and Day of Fast-breaking. In a general point of view by collecting all sermons of the Prophet (Allah’s blessing be upon him and his Household) on Fridays, and the Two Feasts: Day of Sacrifice and Day of Fast-breaking registered in the Shī‘ī and Sunni hadith collections, such cases as: a brief account of the sermons, the full list of indexes of the sermons without deleting the reiterated items, as well as the full list of sermon indexes after deletion of the reiterated ones have been referred to.Then under the title of “analyzing the topics of the sermons” such issues as determining the important components of the sermons, frequency rate of important components, sorting out the priorities of religious values, characteristics of a religious community from Prophet Muhammad’s point of view, volume and duration of the sermons and the analysis of their occasions have been examined.Since the most frequent components in these sermons are ethical, it has been understood that the most outstanding characteristic of religious community in the eyes of Prophet Muhammad (Allah’s blessings be upon him and his Household) is that it pivots on ethics.

Among Imam Ali`s eloquent sermons in Nahj al-Balaghah, the 28th sermon is known as that of jihad. This sermon has been studied by scholars from different dimensions. Considering the sermon as being aimed at persuading the people to jihad in the way of God, one of its considerable aspects lies in the elements used by the Prophet to encourage and persuade people to jihad. As is clear by the words of Imam (A), The quality of creating movement, persuading the people to Jihad and the way of using proper arms require that the dimensions of persuasion as described in his words be examined. The present paper, intending to examine this dimension in the Imam words, seeks to analyze and study the principles and standards of persuasion and their application in the sermon. The results of this research show that the exciting state of the sermon has been carried out with the help of sensory instruments and the use of literary capacities of the text, which, of course, is also accompanied by consciousness.

Nahj-ol-balaghe's utilizing the device of Apostrophe not only is the readers' or the listeners' great attraction to its elegant eloquence but is considered as one of the cohering devices in its sermons. Analyzing the role of Apostrohe in the cohesion of the sermons presented in the same book, determining the amount of using different types of Apostrophe in them, and surveying the effectivness of it on the text cohesion are the main objectives of the present research which has attempted to specify the frequency of different rypes of Apostrophe in the first forty sermons in Nahj-ol-balaghe, and analyze some examples of them as the cohering device, while emphasizing the analytical descriptive method, and figurative linguistics. The findings of the study show that the sermons of the Nahj-ol-balaghe enjoy from hexaploid Apostrophes in pronouns, number, forms, particles, syntax, and vocabulary. They also show that the Apostrophe plays a role in the cohesion of the sermons, being used in the associative and substitutive place with some of the cohesive compentsin linguistics.