Is it permissible to assist in preparing a wedding that includes songs if the person is not present during the time of the songs? Is that considered cooperation in sin and aggression? What is the guideline for cooperation in sin in a work that combines the unlawful and the permissible? Is a person sinful if they attend a wedding that has songs inside the house while they are sitting outside? What is the ruling on squandering money in furnishing the marital home for fear of people's talk?

Preparing food for weddings is a permissible project and not an assistance to sin. Assistance to sin would involve contributing to the occurrence of a forbidden act, such as setting up loudspeakers for music. Attending a wedding where musical instruments are played is not permissible unless one denounces the forbidden act. If one is unable to change it, then attendance is not permissible, unless one does not hear the musical instruments and does not witness any forbidden act. Moderation in spending is required, and extravagance or exaggeration out of fear of people's opinions should be avoided.