Edited sentence: Alot of the shia teachings is in contradiction to islam, and therefore they are considered non-muslims by many.Many shias beat themselves, which is prohibitid in islam.Many sunni muslims does not consider shia to be muslim because they practise the religion of islam wrong.Shias also tend to put Ali in front of all other prophets other than Muhammad (SAW), and sometimes even him (SAW).They also consider the Ahl ul Bayt to be holy, but no man can be holy in islam