What is the ruling on taking the prizes that companies offer to those who buy their products?

Question:
On the packaging of these companies' products, it is written on the lids: "Look under the lid." Sometimes there are some prizes under the lid. What is the ruling in the Shari'ah regarding taking these prizes for the one who buys, or for the one who finds a lid on the ground with these prizes written on it?

Answer:
These prizes are forbidden; these prizes are forbidden, because their intention behind them is advertising, so that people will buy even if they have no need, in the hope that they might find this hidden prize. So this is, in reality, consuming people's money unjustly. These prizes are not permissible. If you need to buy this item, buy this thing and do not take the prize with it. And if you do not need it, leave it, and do not squander your money for a prize that you do not know whether you will get it or not. If you do get it, it is not permissible, because it is consuming money unjustly.