The need to research language and grammar:

But that first generation of the early vanguard had not passed

of the early vanguard

and non-Arabs mixed with the Arabs,

and that first original language passed away

and understanding the demands and meanings became difficult in some places,

and the need touched upon inspecting and researching in language and grammar,

and discussions, questions, and answers took place,

and books of exegesis were compiled.

It became necessary to bring to mind - in a general way - these difficult places,

and to clarify their models and examples

so that when delving into them, no further clarification is needed

nor is one forced to exaggerate in uncovering and explaining it

(during translation and exegesis)

[Reasons for the difficulty of understanding the intended meaning from the speech:]

- Sometimes it is difficult to reach the understanding of the intended meaning from the speech

due to the use of a strange word,

and that is treated by transmitting the meaning of the word from the Companions, the Successors, and the rest of the people of the language.

- And at other times due to a lack of acquaintance with the abrogating and the abrogated.

- And sometimes due to heedlessness regarding the reasons for revelation.

- And yet another time due to the omission of the mudhaf (genitive construct), the described, or other than them,

- And sometimes by replacing something, or replacing a letter in place of a letter,