The followers of "Batiniyyah-Twelver" madh'hab consist of Alevis and Nusayris, who developed their own fiqh system and do not pursue the Ja'fari jurisprudence.
In Turkey, Shia Muslim people belong to the Ja'fari jurisprudence Madhhab, which tracks back to the sixth Shia Imam Ja'far al-Sadiq (also known as Imam Jafar-i Sadiq), are called as the Ja'faris, who belong to Twelver Shia.