Kindly refer to the following link(s):

https://www.youtube.com/watch?v=phRSuDzA6CQ

An organization has no dress-code directive (obligation or prohibition) regarding cap / religious head-covering of males. Yet a top executive has been recently giving verbal orders to not wear “tupi” stating that “Tupi is not part of Islam”. In the circumstance, for someone who wears “tupi” to follow the Sunnah of Rasoolullah (ﷺ), what’s to be done?

Men Clothing |