Keeping the Change
Question :

I work in a store as a cashier, and sometimes the customer pays more than the required amount and says, ‘keep the change.’ Can I take that extra money for myself?

Answer :

If you understand from the customer that the money is given to you personally, then you can keep it for yourself. But, if the customer’s intention was to give the extra cash for the store, or the employer stipulates that extra cash is the store’s, then you cannot take the cash.

Increased Price
Question :

I was requested by a friend to buy a product for him. Is it permissible for me to add a margin for myself and give him the increased price?

Answer :

It is prohibited to do so, without his consent.

Gold Rings
Question :

If a man had gold rings in the past and now realizes that they cannot be worn by him, can he sell them or exchange them for women’s gold jewelry?

Answer :

Yes, it is permissible.