I attended five weddings last year

Re: I attended five weddings last year

Question: Do you know if the couples were allowed to communicate with each other over a period of at least several weeks or months (by phone, e-mail, supervised get-togethers etc.) BEFORE the nikah? From the time the couples met each other for the very first time (or communicated if they were in different locations)…how long after did the nikah take place?