It is not permissible
to eat the flesh of monkeys. The original ruling on this is the Sahih (authentic) Hadith of the Messenger of Allah (peace be upon him) which states that it is Haram (prohibited) to eat any beast that has fangs and any bird that has claws. A monkey is among those animals that have fangs, and another proof is the report narrated by
Ibn `Abbas (may Allah be pleased with him), that
the Messenger of Allah (peace be upon him) forbade eating any fanged beast of prey and any taloned bird of prey.
(Related by the Six Hadith Compilers except