Is it permissible to sell sportswear in a shop that sells cigarettes, while only profiting from the sale of clothes?

The sin of selling cigarettes falls upon the shop owner, not upon someone who displays their goods or sells permissible items within the shop. There is no blame upon the questioner for displaying their permissible goods. However, they should advise the shop owner to avoid selling cigarettes and prohibited items, for every person is accountable for their own actions.