What is the ruling regarding wearing hijab in front of my mother's
husband? Neither of them are Muslim, although Alhumdulilah, they are accepting of my being
Muslim. They have no children together and married after I had already moved out of the
house. Would he be considered my mahram or not?
Juzak Allah kheir
It is not obligatory because no report to that effect has been narrated, so we refer to the principle that all things are permitted except those which have been expressly forbidden. As far as a mahram ( a relative whom one is permanently forbidden to marry this includes the mothers husband) for travelling is concerned, one of the conditions is that he should be a Muslim. And Allaah knows best.