The king of Persia has a visitor
who will be his new minister of defence.When he comes the king
greets him and asks politely "would you like a tour of the
city " the visitor says "ok". As the two of them
are walking the king points at a beggar with a donkey and says
"that man there is the richest man in the city apart from
me" the visitor asks "how"the king replies "well
he seems to be smuggling something, but we don't no when he does
it " so the minister comes up with an idea of having guards
search him whenever he goes in or out of the city but this plan
does not work.
What does the man smuggle?