One may ask, why Prophet Abraham (AS) who has been called Muslim and also advised others to be Muslim till death, has been named Shia? This leaves no room but to believe that his being the Shia of Noah (AS) does not contradict his being Muslim.Now, we realize that being a member of a party does not contradict our identity as being Muslim AS LONG AS the leader of the Party is assigned by Allah, or at least, as long as the leader does not order something against the order of Allah and His Prophet.Suppose there exists a party with a leader whose name is Imam xxxx.One may subscribe to this party as long as he does not prefer the order of Imam xxxx over the order of the Prophet (PBUH&HF).When does a party become a sect and thereby denounced by Allah? The answer is that it will be a sect if Imam xxxx states something against the commandments of Allah or His Prophet, and when we as followers prefer the order of Imam xxxx over the order of Allah and his Prophet (PBUH&HF).This has been severely condemned in Quran, and such party is no longer a school of though within Islam but it rather has divided his followers from the religion of God and has split into a sect.May Allah protect us from such parties.