Abstract: The art of "necessity of what is necessary " (the "art of commitment") is a type of verbal rhetoric. Ibn al-Mu'tazz considered it a rhetorical embellishment and used it as an example. In defining it, he said: "It is the poet's effort and obstinacy in rhymes, and his insistence on doing things he should not.".Many poets of the pre-Islamic era resorted to coloring their poems and verses with this rhetorical style, which adds beauty and elegance to the verses, transporting them to a different place and a different direction, drawing the reader to these verses and striving to savor them and understand their meaning, then came poets from other eras, and many attempted to create a similar art form. However, only a few were able to achieve it, as it requires extraordinary creative abilities and distinctive skills.