Information:  - A (', , "doctrine"; pl. ') is a school of thought within "fiqh" (Islamic jurisprudence). In the first 150 years of Islam, there were numerous "madhahib", most of which have become extinct or merged with other schools. The Amman Message, which was endorsed in 2005 by prominent Islamic scholars around the world, recognized four Sunni schools (Hanafi, Maliki, Shafi'i, Hanbali), two Shia schools (Ja'fari, Zaidi), the Ibadi school and the Zahiri school.  - Amad bin Muammad bin anbal Ab Abd Allh al-Shaybn (780855 CE/164241 AH), often referred to as Amad b. anbal or Ibn anbal for short, was an Arab Muslim jurist, theologian, and hadith traditionist. An enormously influential and vigorous scholar during his lifetime, Ibn Hanbal went on to become "one of the most venerated" and celebrated personalities in the tradition of Sunni Islam, within which he was often referred to by such reverent epithets as Sheikh al-Islm and Imam of Baghdad. He has been retrospectively described as "the most significant exponent of the traditionalist approach in Sunni Islam," with his "profound influence affecting almost every area of" orthodox Sunni thought. One of the foremost classical proponents of the importance of using hadith literature to govern Islamic law and life, Ibn Hanbal is famous for compiling one of the most important Sunni hadith collections, the celebrated "Musnad", an enormous compendium of prophetic traditions that has continued to wield considerable influence in the field of hadith studies up to the present time. Additionally, Ibn Hanbal is also honored as the founder of the Hanbali school of Sunni jurisprudence, which is one of the four major orthodox legal schools of Sunni Islam.  - The Hanafi ("") school is one of the four religious Sunni Islamic schools of jurisprudence (fiqh). It is named after the scholar Ab anfa an-Numan ibn Thbit (d. 767), a tabii whose legal views were preserved primarily by his two most important disciples, Abu Yusuf and Muhammad al-Shaybani. The other major schools of Sharia in Sunni Islam are Maliki, Shafi'i and Hanbali.  - The Hanbali school is one of the four orthodox Sunni Islamic schools of jurisprudence (fiqh). It is named after the Iraqi scholar Ahmad ibn Hanbal (d. 855), and was institutionalized by his students. The Hanbali madhhab is the smallest of four major Sunni schools, the others being the Hanafi, Maliki and Shafi'i.  - The madhhab is one of the four major schools of Fiqh or religious law within Sunni Islam. It was founded by Malik ibn Anas in the 8th century. The Maliki school of jurisprudence relies on the Quran and hadiths as primary sources. Unlike other Islamic fiqhs, Maliki fiqh also considers the consensus of the people of Medina to be a valid source of Islamic law.  - Abu Abdullah ` Ubaidullah bin Muhammad bin Battah al - ` Ukbari al - Hanbali ( known as Ibn Battah ) was a Hanbali theologian and jurisconsult born at ' Ukbara in 304/917 . He learned from a number of Hanbali scholars of his time and also personally knew al - Barbahari . Ibn Batta was severely attacked by Khatib al - Baghdadi , a former Hanbali though he was defended by Ibn al - Jawzi who was much influenced by him .    After reading the paragraphs above, we are interested in knowing the entity with which 'ibn battah' exhibits the relationship of 'religion'. Find the answer from the choices below.  Choices: - hanafi  - hanbali  - ibadi  - islam  - maliki  - muslim
A:
islam