Post by David Amicus
If a Muslim converts from one sect to another say a Sunni becomes a Shi'ite or vice versa do they have to recite the Shahada?
Many Shia expand the Shahadah to include "Ali is the waliyy (friend or someone close) of God".
It's a matter of who you are dealing with. ISIL considers Shiites polytheists and they execute on the spot someone who gives the "wrong" answer to the number of prostrations in the morning prayer. But that is of course a most extreme view.
Otherwise, in more tolerant environemnts, it could be just a matter of seamlessly accepting a different view of certain descendants of Ali and making minor adjustments in terms of ritual and law, rituals that some Shia and Sunnis accept as equally valid.
In Lebanon and some other countries sectarian affiliation is regsitered (both for Muslims and Christians) and this becomes a civil matter in such areas as how you vote, inherit or divorce.