The school of jurisprudence of most Shia Muslims, derived from the name of Ja'far al-Sadiq, the 6th Shia Imam. This school of jurisprudence is followed by Twelvers in general and Isma'ilis in part, as well as a small minority of Zaidis. It differs from the four or sometimes Five Schools or madhhabs of Sunni jurisprudence in its reliance on ijtihad, as well as on matters of inheritance, religious taxes, commerce, personal status, and the allowing of temporary marriage. However, despite these differences, there have been numerous fatwas regarding the acceptance of Jafari fiqh as an acceptable Muslim madhhab by Sunni religious bodies.