Al-Farrā' and a group of commentators said: It specifies the mankind into whose breasts whispers are cast. The meaning is: he whispers into the breasts of mankind, who comprise jinn and humans. In other words, those into whose breasts whispers are cast fall into two groups: humans and jinn. Thus, the whisperer whispers to a jinn just as he whispers to a human.
According to this interpretation, “from among the jinn and mankind” occupies an accusative position as a circumstantial qualifier, since it is a prepositional phrase following a definite noun. This is the Basran grammarians’ analysis. According to the Kufan grammarians, it is accusative through “detachment from the definite noun.” That is their expression. They mean that, since it cannot serve as an adjective qualifying the definite noun, it is detached from it and therefore occupies an accusative position. The Basrans understand it as a circumstantial qualifier, meaning: “being from among the jinn and mankind.”
This interpretation is exceedingly weak, for several reasons:
First: No evidence has been established that a jinn whispers into another jinn’s breast, enters him as he enters a human, and courses through him as he courses through a human. What evidence establishes this, such that the verse may properly be interpreted in this way?
Second: This interpretation is also unsound in terms of the wording. Allah says, “who whispers into the breasts of mankind.” How, then, can “mankind” be explained by “mankind”? On this interpretation, the statement would mean: “He whispers into the breasts of mankind who are—or: being—from among the jinn and mankind.” Is it acceptable to say, “into the breasts of mankind who belong to mankind and others”? This is neither acceptable nor eloquent usage.
Third: It would divide mankind into two categories: jinn and mankind. This is incorrect, since a thing cannot be a category alongside itself.
Fourth: The designation “mankind” cannot be applied to the jinn in any respect: neither in its origin, nor by derivation, nor in usage. The very wording of the two terms precludes this. The jinn were called jinn only because of ijtinān, meaning concealment. They are concealed from human sight, and were therefore called jinn,