His statement, “or a specified part,” means a specified part. It says in al-Rawḍ: “such as her upper half” (1). Thus, if he says, “Your upper half is divorced, while your lower half is not divorced,” she is entirely divorced.
His statement, “or an unspecified part”: for instance, if he says, “Part of you is divorced,” or, “A portion of you is divorced,” or something similar, she is divorced.
In sum, if he pronounces divorce concerning any part of her—whether specified or unspecified, definite or indefinite—the divorce applies to all of her. The reason is the same in every case: divorce cannot be divided in its subject; once it takes effect with respect to one part, it extends to the whole.
The author then moved on to dividing the divorce itself, having discussed dividing the person divorced. He said:
“Or if he says: half a divorce”: that is, “You are divorced by half a divorce,” one complete divorce takes effect, because divorce cannot be divided. If we were to say that it can be divided, then three divorces would become six, which is impossible. Therefore, if he says, “You are divorced by half a divorce,” one full divorce takes effect, because it cannot be divided.
His statement, “or a portion of a divorce”: if he says this, or says, “part of a divorce,” a divorce takes effect. This is why he said, “She is divorced.”
His statement, “and the reverse of this,” means the reverse of what has just been mentioned.
His statement, “the soul, tooth, hair, nail, and the like”: if he says: