Linguistic miracles can be derived by the harmony between the verses and surrats in the Holly Quran. Therefore, this study aims to provide examples of these linguistic miracles which focus on the harmonious nature and its benefits and this has led me to give it a title as " Elm Al Monasabah". This type of science is considered as one of the important sciences as it illustrates the Holly Quran which is the speech of Allah and is with no doubts the most eloquent speech. This study is divided into three chapters. The first chapter examines the external harmony of surrat of Sad (us) based on what order it takes in the Book of Holly Quran and when it is sent down. Specifically a deep study is conducted on the harmony of surrat of Sad (us) with the proceeding and following surrats in terms of their beginning and ending and their similar themes. The second chapter examines the harmony of text. It is divided into two parts: A. The internal harmony: This part explores the harmony between the name of the surrat and its purpose, the harmony between its beginning and ending and the harmony between its verses and parts. B. The harmony between its stories: This part explains the importance of the stories in the Holly Quran, their features and types. Also, it clarifies how the stories in surrat of Sad (us) are in harmony with the stories in other surrats in addition to their harmony with the purpose of surrat of Sad (ua). The third chapter investigates the harmony of language which takes the following forms: A. The harmony of phonetic form: This kind of harmony is represented by sound indicators like commas, the significance of single and compound sounds. B. The harmony of meaning patterns: like stress patterns and derivatives. C. The harmony of structure patterns: this kind of harmony occurs in four areas: the harmony of linguistic structures, decelerated structures, comprehensive and detailed structures and decelerated appeal. D. The harmony of words: this can be seen in six words: the ) "Izzah" K en ) "fa'fazah", (voet "alwahhab", "fa'yathoqooh", (JKT) "AlQahhar", { margin) "Rajeem". E. The harmony of similes: This kind of harmony is clearly defined with consideration to its importance. It is indicated in certain areas in surrat of Sad "us". This study ends a conclusion that includes the following findings: 1. The harmony between the surrat of (Al Qamar, Sad and AL Araf) in terms of sending down and the harmony between the surrat of (Al Saffat, Sad and Al Zamr) in terms of their order in the Holy Quran as well as the harmony between their themes at their beginings. 2. The harmony of the surrat (Sad) with its purposes that emphasize in (The Oneness of God, the prophecy of Mohammed – peace be Upon him - and the belief in resurrection, Judgment and punishment). 3. Using the phonetic forms in a precise way shows the compatibility of the letter and its position. 4. The variation of using the emphasis style, for example (the emphasis with "X", the emphasis with "," and "J", the emphasis with "J" in a conditional sentence, the emphasis of " AlHal and the emphasis of word and meaning, could match with the purpose of the surrat of (Sad, which is featured with emphasis as mentioned. 5. The verbal similes are considered a precise technical style and it is one of the basics of harmony science "Elm Al Monasabah". In addition, the different structures have their equivalents.