Hi yes I’m Muslim, we’ve had in depth discussions with my religious teachers about this, and important issue they felt needed to be addressed given the tragic events of Iran. Basically, Islamic law says that men and women must observe hijab, which isn’t just a cloth worn on your head, but a whole set of rules for maintaining modesty and dignity in public. Men are instructed to cover themselves and lower their gazes in front of unrelated women. On to what everyone wants to hear about: women. The different coverings all cover different parts, and what a woman wears depends on what she interprets the religion instructing to cover. So some interpret it as saying to cover the hair/head, some say face must also be covered, some say that such clothing should be worn to conceal her entire body’s shape. It’s supposed to be the woman’s choice herself, because the whole purpose of Islam is that Allah sent us a prophet and a book, and outlined proofs of His existence in daily life (part 1)

Personally, I would say that the best way to be an ally is just to listen with empathy about some of our experiences with racial discrimination. I'm not expecting racism to stop overnight, or for people to suddenly stop being jerks, but having someone to talk to and for them to extend grace and compassion can make all the difference in the world, and can make us feel less isolated.