Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 3 years ago

Muslim is not allowed to sell or serve or carry or deliver or take money or make accounts or do any thing related to alcohol and pork. Other non Halal meat like beef, mutton, chicken etc is also not allowed to sell to Muslims. Selling it to non Muslims who believe that it is allowed for them, is allowed according to many Maraaji' of Taqleed.

Muslim cashier is not allowed to take money for alcohol or pork.