This book (al-Muhalla) is a wealth of scholarship, in which Ibn Hazm discusses each question separately. On each question, he cites the views of earlier scholars of high achievement, not restricting himself to the views of the four schools of Fiqh, but also citing the rulings of scholars like al-Hassan al-Basri, al-Laith ibn Saad, Ata', Sufyan at-Thawri, al-Awza'ie, (May Allaah be Pleased with them All) etc. He also quotes the evidence they used in support of their views. He then discusses why he considers their views incorrect and produces the evidence in support of his own view. This makes for a highly scholarly discussion. Many scholars describe al-Muhalla as the encyclopedia of Islamic Fiqh. Indeed, it has preserved many of the views of early scholars whose work was either not documented or lost. The only problem with al-Muhalla is that Ibn Hazm is often severely critical in his criticism of his opponents. Yet there is no doubt that he is an honest defender of what he considers to be the truth. Any scholar who wants to exercise ijtihad, in order to arrive at rulings for questions encountered in present-day life cannot overlook al-Muhalla.
Muhalla has been a significant work for proponents of the Zahiri school of law. During the Almohad Caliphate, in particular, learning it was standard for the training of the judiciary. During the Mamluk Sultanate in Egypt and Syria, the Zahiri Revolt was inspired in part by active studying and teaching of the book, in addition to separate political grievances.
In the modern era, this trend has continued with adherents of the school; Pakistani scholar Badi' ud-Din Shah al-Rashidi, for example, gave classes based on the book in Masjid al-Haram in Mecca. Similarly, Yemeni scholar Muqbil bin Hadi al-Wadi'i (Rahimahullaah) taught the book in al-Masjid an-Nabawi, while in Medina. Abu Abd al-Rahman Ibn Aqil al-Zahiri, a biographer of Ibn Hazm, sought permission to teach the book in Riyadh, though the predominantly Hanbalite religious establishment didn't grant approval. The Ahl al-Hadith movement in India and Pakistan frequently uses the book as a teaching tool as well.
Ibn Abd al-Salam said: "I did not see, in all the books of knowledge in Islam, anything like Ibn Hazm's al-Muhalla nor like Shaykh Muwaffaq al-Din's Ibn Qudama al-Mughni." adh-Dhahabi comments: "Shaykh `Izz al-Din is right, and the third is al-Bayhaqi's as-Sunan al-Kubra, and the fourth Ibn 'Abd al-Barr's al-Tamhid. Whoever obtains these volumes, if he is one of the intelligent muftis and perseveres in reading them - he is truly an `alim.
Muhammad Abu Zahra, one of the leading scholars in the twentieth century, describes this book in these words: "It is truly and accurately the pillar of Islamic Fiqh, and it is a highly useful book. Had it not been for the usage of scathing remarks and some phrases that are evidently inappropriate and out of place, it would have been the best book ever on Sunni Fiqh.
This version is 7 Volumes printed by Dar Ibn Jowzi (Cairo) on yellow paper.
