—for singling out one part of the general class for express mention, whenever a separate reason warrants that specification, does not imply that what remains unmentioned is to be treated oppositely. This is what the jurists call mafhum al-mukhalafa (the implication by contrast) or dalil al-khitab (the inference drawn from the wording itself).

Everyone agrees that when something is singled out in the wording because a particular context requires its mention—rather than to confine the ruling to it—no exclusive implication is entailed, whether the item is identified by a proper noun or by a descriptive attribute. The Exalted says:

“Do not kill your children out of fear of poverty.” ⦗al-Isrāʾ 17:31⦘