Is it permissible to use a perfume that is likely or predominantly thought to contain hashish, and if not, is it permissible to purchase an imitation of this perfume because it contains hashish?

All types of hashish are forbidden and impure. It is not permissible to use perfumes containing it if it is confirmed or highly probable that they do. However, mere doubt does not render intrinsically pure objects impure. It is recommended to avoid anything suspected of containing hashish. Buying perfumes free from hashish and similar substances is permissible, even if they are imitations, as long as they are not forgeries bearing the trademark of the original product. This is because counterfeiting is impermissible due to its infringement on the company's right to its trademark and trade name.