لَا يُدْرَكُ بِهَا مَا يُدْرَكُ بِالْحَاسَّةِ الْأُخْرَى
One sense does not directly perceive what belongs to another sense.
This expresses the specialization of the senses, but a question remains whether the properties associated with one sense may also be known indirectly through another.
A rough surface may look rough, yet recognizing it visually differs from the sensation of touching it. A familiar object may suggest a fragrance by sight, but that is not the same as smelling it.
The claim of specialization is best read as concerning characteristic direct perception, not an absolute ban on every indirect form of recognition.