Is it permissible to say Eid Mubaarak on Eid Days when meeting people?

Answer

Saying Eid Mubaarak and similar words is mubaah (permissible). However, when a permissibility becomes entrenched and people begin believing it to be incumbent and Sunnat, then it becomes bid'ah. Therefore, if in any place this greeting is regarded necessary, then it will be bid'ah otherwise not. Also, if it is said before the Masnoon Salaam when meeting someone on Eid Day, then it will be bid'ah.