As part of coexistence and good relations with non-Muslims, sometimes we may receive invitations from them for some of their occasions, for example, graduation ceremonies, Christmas, or New Year’s holidays. Is it permissible to congratulate non-Muslims on their occasions and holidays? Is it permissible to attend their celebrations or parties, which are usually not without singing, music, and unlawful drinks?
It is permissible to congratulate the people of the book (Christians and Jews), as well as other non-Muslims, on the occasions that they celebrate, such as New Year’s Day, Christmas, and Easter. As for attending these gatherings and remaining silent about the unlawful acts committed there, it may be considered an endorsement and even encouragement for committing such unlawful acts. Additionally, forbidding the wrong when its conditions are fulfilled necessitates doing what is necessary to deter it, just as it is prohibited to eat at a table on which alcohol is served, and also to just sit at such a table based on obligatory precaution.