Ali (sa) who married the only daughter of prophet.
shia and sunni have mostly same beliefs and both believe in fundamental beliefs of Islam. today there is up to 260 sect in Islam that are in two category of shia and sunni.
shia believes in Allah, prophet and all fundamentals of Islam.
shia pray 5 times a day but usually do the 2,3 and 4,5 pray together and so may seem they do 3 pray a day. there is some differences in details of pray like how to hold hands in pray and on what do the genuflect (for shia should be on a stone or part of earth and for sunni on carpet or floor ).
shia believe after death of prophet God selects the successive for prophet who is the leader of Muslim community and people can not select it.
shia believe the Caliph (Representative of God in earth after prophet) is appointed only by God and can not be selected by people because God said in Koran: "Indeed, I will make upon the earth a successive authority." (Quran 2:30)
this means only God can select an Islamic leader.
in shia they are only fourteen infallible (12 Imams and prophet and his daughter Fatimah Zahra (sa))
and all of them are the same and have no mistake and have the knowledge of everything (this knowledge is from God and by permission of God and is not absolute knowledge. absolute knowledge is only for God and they still do not know many things. but they know anything human may need to know.) and they never die and they hear all sayings and even thinks of all humans after their death by permission of God and they are intermediates between God and human.
and shia Muslims always support them and forgive their lives for them.
shia Muslims do not consider selection of Abubakr as Caliph valid because God did not select him. they believe God ordered prophet to declare Ali is selected as successor of prophet (Quran 5:3) and prophet did this mission in Ghadir event that was in last Hajj of prophet in his life and prophet did a speech for 120,000 Muslims participating that Hajj with prophet. the famous shia book Al-Ghadir is a collection of evidences and proofs for Ghadir Hadith from 100,000 sunni references and read all of 10,000 sunny books. one sunni scholar said if we want to reply Al-Ghadir book (by Allameh Amini) we should first destroy all our books.
Shia doctorin has root in Karbala. when tragedy of Karbala happened most of iranians became shia.
The death of Muhammad split the Muslims over their belief about who should take over as their leader. The Sunnis believed that the person should be elected and the Shiites believed that the person should be a descendant of Muhammad.
This group is called the Shi'a. Its members were known as Shiites.
They are called Shiites. refer to related question for more information.
The Shiites group. Refer to question below for morte information.
The division between Sunni and Shiite Muslims originated from a disagreement over who should succeed the Prophet Muhammad as the leader of the Muslim community. Sunnis believed that leadership should follow community consensus, leading to the election of Abu Bakr as the first caliph, while Shiites believed that leadership should stay within the Prophet's family, leading to the belief in Ali, Muhammad's cousin and son-in-law, as his rightful successor. This difference in opinion resulted in a lasting schism in Islam.
may be shiv
Sunni's believe their leader should be Prophet Muhammad (S.A.W) and their lord Allah.
sunni
Muhammad was not the founder of any branches of Islam. In fact, he was not even the founder of Islam, rather the messenger. As well as this, Muhammad and Islam discourage branches within Islam so it clashes with the question.
The implication behind this question is that there is something wrong with Shiites or that Shiites should be "fixed". This is a very flawed perspective. You should reach out to your Shiite Muslim brothers and sisters rather than worry about what you do not know.
This sect of Islam is known as Shi'a Islam, who believe the rightfully chosen followers of Muhammad were the 12 imams, who were from the family of Muhammad.
The Shiites in Iraq do not have a unified perspective on who should rule Iraq, which is why there are several Shiite-majority parties in the Iraqi Parliament. However, most Shiites would prefer if Shiites were in power over Iraq and are intensely distrustful of Sunni Arabs given the long history of repression visited on the Shiites during Sunni Arab power.