Discussion of the saying of Allah the Exalted: ((And it is not a private part, if they only wish to flee))

And His saying: I would like to hear its grammatical parsing from one of you, O grammarians of Basra. Yes.
The student: ...

The Shaykh : It is built on kasrah; it is built on sukun.
The student: Fathah.

The Shaykh : Correct.
The student: ...an extra preposition.

The Shaykh : Extra in terms of grammar.
The student: ...

The Shaykh : The predicate of "ma" is raised with a fathah that is implied on its end, the appearance of which is prevented by... If someone were to ask, "Who says it is Hijazi, since the text is not explicit about the predicate?" Would it not be permissible for "awrah" to be the predicate of the subject, raised with a dammah implied on its end, the appearance of which is prevented by the occupation of the position? So how do we answer him?
The student: The Qur'an was revealed in the language of the people of Hijaz?

The Shaykh : What is the evidence? We need a witness from the Qur'an to support your claim?
The student: ...

The Shaykh : So the accusative case indicates that the Qur'an was revealed in accordance with the Hijazi language.