Rambam: And that was a most terrible event as my brother drowned in the Indian Ocean, he had taken such care of me and now I was left alone and bewildered in a strange land. Rabbi Moshe ...
I asked something like this. The reasoning if I can remember: You should not sell your daughter as prostitute. Rambam said that all sex outside marriage is prostitution. Therefore sex outside ...
I read that the Rambam considered a Jew who converts to Islam NOT to be an Apikorus(אפיקורוס)\heretic or an ovdei avodah zarah, as opposed to a convert to Christianity who he considered to be heretic ...