Question: If you are a Muslim business man is it allow to sell Diya or other things that propagate another religion and to sell the product that ladies use to put on there face beauty products cosmetic.
Answer: Assalamu Alaikum,
If a product is used for different things and is not exclusive to the worship of a group or religion, then it is permissible to sell it. However, if the product is used only for the sake of a religion which practices Shirk and it is not normally used, bought or sold for any other reason, then it will not be allowed to sell such a product. In the case of the Diya, it is known that this is bought/sold only for the sake of a religious festival which is based on Shirk, hence, it will not permissible to sell.
With respect to beauty products, cosmetics etc. these are permissible to sell as long as they do not contain unlawful substances.
And Allah Knows best.
Mufti Waseem Khan.