Ibn Hazm (384 hijriy – 456 hijriy) Kordova shahrida, Andaluziyada (Ispaniyada) tug'ilgan, o'sha paytda u butun Yevropa uchun ilm poytaxti bo'lgan. U Qur'onni, Hadisni va Moliki fiqhini o'rgandi. So'ng Shofe'iy fiqhini o'rganish uchun ko'chib bordi, keyin uni tark etdi. Keyinchalik u Mas'ud ibn Sulaymondan Abu Dovud Az-Zohiriy mazhabini o'rganish uchun ko'chib ketdi.

Ibn Hazm (384 AH - 456 AH) was born in Cordoba in Andalusia (Spain), which at that time was the capital of science for all of Europe. He studied Qur‟an, Hadith, and Maliki Fiqh. He then moved to study Shafi‟i‟ Fiqh, and left it. Later on, he moved to study about the Madhab of Abu Dawud Az-Zahiri from Mas‟ood bin Sulayman.

Ibn Hazm qiyosni rad etdi va matnning faqat lafziy ma'nosini olib, shu darajaga yetdiki, agar biror kishi suv havzasiga siysa qilsa, masalan, u suvni najis deb hisoblardi; biroq agar siydik cho'chqaniki bo'lsa, unda suv najis hisoblanmasdi. Ibn Hazm taqlidga qarshi kurashdi va odamlarni masalalarni dalil asosida muhokama qilishga chaqirdi. Bu uning o'sha davrdagi ba'zi kishilardan muayyan muammolarga duch kelishiga sabab bo'ldi. Uning eng muhim kitobi "Al-Muhalla"dir.

Ibn Hazm rejected Qiyas and took only the literal meaning of the text to the point that if a man urinated in a body of water; for example, he would consider for the water Najis (filthy); however, if the urine were from a pig, then the water would not be considered as najis. Ibn Hazm fought against Taqleed and called the people to discuss issues based on the Daleel. This caused him some problems from some people at that time. His most important book is Al-Muhalla.