That could work. Maybe email would work better? As voice/number can sometimes be recognized. I guess email can give identity away if it’s an obvious one. But if imam checks the email often and responds in a timely manner…then this can turn out really well. She’ll have to ask him in the email/on the phone…when he plans to do a sermon on this topic. And then try to get her husband to attend without appearing too eager.
Maybe she should wait a while before talking to the imam? Right now her husband isn’t talking much to her…let alone feeling any remorse. It would be cool for BOTH the OP and her husband to attend the Jumah Khutbah (or whenever the khutbah takes place). It’s FUNNY to imagine him being uneasy around her…as they get back in the car and drive home…that awkward “I’m guilty” silence, lol.