Ruling on draws for cars

That is not permitted, because they are benefiting themselves
and harming others. They offer a prize of a car or freezer, etc., and
say that whoever buys such and such can take part in this competition,
and we will draw one of the names, and if he wins he will get a car
worth one hundred thousand or whatever. So the people rush to them and
maybe ten thousand or twenty thousand customers come, but only one will
win the competition and the rest will lose. Thus they harm the owners
of other stores because the people rush to them and ignore the other
stores which causes harm to the others.