Abu Bakr (may Allah be pleased with him) killed people for not paying zakat
Here is a shia hadith, which says Imam Mahdi will do things which no one ever did before. One of them is that he will slaughter those people who do not pay zakat.
Here is a shia hadith, which says Imam Mahdi will do things which no one ever did before. One of them is that he will slaughter those people who do not pay zakat.