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FORNICATION OF THE EYES, EARS, TONGUE, HAND, FEET, HEART AND GENITALS

Any share of fornication of the son of Adam
is written and no doubt he will reach it:
The fornication of the eyes is looking
at that which is forbidden.
The fornication of the ears is listening
to that which is forbidden.
The fornication of the tongue is saying
that which is forbidden.
The fornication of the hand is grasping
that which is forbidden.
The fornication of the feet is walking
to that which is forbidden.
The fornication of the heart yearns and desires
and the genitals either confirm it or contradict it.

{Ref. 1667 Muslimun with a chain up to Abu Hurairah who related that the Messenger of Allah, praise and veneration be upon him, said the above}