regarding how to form the imperative from the verb ghaza or da'a?

The Shaykh : In the second case, the first case is clear. We say in the first case: the word is in the position of the object of a deleted "said." In the second case: we say the kaff is a preposition, and the word is a noun in the genitive case due to the kaff, because the intended meaning is its form, and the sign of its genitive case is a hidden kasrah at the end, the appearance of which is prevented by the citation.
The student: ... .

The Shaykh : What?
The student: ... .

The Shaykh : What?
The student: ... .