Is it permissible to deal with a family involved in drug trafficking, by lending them money or giving them an advance? Is it permissible to eat their food? Is it permissible to work for them as an employee? And what should I do with the gifts they offer, such as food and sweets for children, and other items?

Relatives must be advised and prohibited from evil. It is not permissible to borrow, accept gifts, or eat from their money if all of it is unlawful (haram), or if the money given is from an unlawful source. If their money is mixed between lawful (halal) and unlawful, then it is disliked to take from them, but not prohibited. It is permissible to work for them, provided that the work is not in a prohibited field or connected to anything prohibited.