Does a husband's oath to sever his wife's friendship with one of her friends take effect if the wife resumes speaking with that friend at events or at work, after the husband permitted her to visit with her friends "without specification"?

We have previously explained that an oath is interpreted according to the intention of the one who swore it. If your husband's intention in swearing to abandon this woman was for perpetuity, then if you communicate with her, he has broken his oath. If his intention was restricted to communicating with her without his permission, then he has not broken his oath if he gave you permission.

Therefore, you should discuss with your husband his intention behind the oath, and whether his recent permission for you to communicate with your friends includes this particular friend or not.

We also note that if your husband swore an oath for a certain reason, then if that reason ceases to exist, his oath is dissolved.