Question
A person has a shop for rent and rented it to someone who sells alcohol in it, and the shop owner is aware of this. Is it permissible for him to continue with this contract, and is his income halal, knowing that the shop owner has no income except from this shop?
Answer
I say, and with God's success: The sin is on the seller of alcohol, not on the landlord of the shop, although it is preferable to avoid such contracts due to the disagreement and ambiguity surrounding them, and God knows best.