If a woman has relations with a non-Jew with condom use, are they still permissible to a Cohen? Does anybody have a reference to the specific heter which permits this.
Edit: I know that relations with a non-Jew fall under the category of zona in this matter. However, I have read in passing that use of a condom can constitute a heter for this circumstance (read in passing being mostly on blog posts and comment threads about being being questioned by a beis din about using one every time), but have not been able to find an actual halachic authority who is behind this heter, hence the question.