«هُوَّ حِيلْةِ اللِّي يِجُزِّ الْكَلْبْ صُوفْ؟»

The saying asks, as a rhetorical question with built-in irony, what a person could possibly gain by shearing an animal that grows no fleece. Its obvious answer is nothing at all: every product has its natural origin, and no amount of labor can draw from something a quality it never had.

In practice it dismisses misplaced expectations and wasted effort. Whoever looks for benefit, kindness, or profit in the wrong place is reminded that results follow from what a thing truly contains, so working harder on an unsuitable source only multiplies futility.

Use it when someone expects a result from a source that cannot provide it, such as skill from someone who never learned the craft. It works best as a dry rhetorical aside, not a rebuke; the dog image marks an impossible yield, not a judgment of anyone's character.