Ruling on distributing gifts in a store after a specific purchase

Question:
I have a market, and I wish to distribute gifts in the month of Ramadan, including a car. The distribution of gifts is after a purchase of one hundred riyals to obtain a coupon. Please advise us, may you be rewarded. Is this practice valid?

Answer:
This is ambiguous: If you are distributing gifts by giving to the poor and needy without any condition, distributing them to them, giving them charity, giving them money or clothes for the poor and needy in Ramadan.
As for the method of gambling: you take, meaning, cards that you provide, where one hundred or two hundred enter the card, then numbers are written on it, and whoever wins the number gets such and such. This is not permissible. This is riba (usury or interest), rather it is gambling, maysir (gambling). If you are sincere and want to do good, give charity and do not put up cards, and do not put up anything. Give charity to people with what Allah has made easy for you of money, or clothes, or food.
As for coupons or cards on which required amounts are written, where whoever presents it presents one hundred riyals, or meaning, it is not given except by presenting one hundred or two hundred riyals, and there are numbers on it, and whoever wins the number gets a car or a radio, or such and such, or such and such. These are among the acts of gambling, they are not valid, this is not charity, this is plundering the wealth of people.