Asín Palacio's biography shows Ibn Hazm as once vizier to the declining Umayyad caliphs before retiring to his study. During the course of his career Ibn Hazm had become a Muslim jurist of the "Zahiri" (or "literalist") school of law. His legal treatise on fiqh, "Ibtal", is referenced by Asín and regards the Zahiri rejection of the heuristic use of analogy, learned opinion, social equity, juristic authority, and 'spirit' of the law, as unacceptable legal method. Late in his "Fisal", as a jurist Ibn Hazm addresses possible rebellion against an unjust Imam; the distinction is made between not obeying an unjust order and taking action to overthrow an unjust ruler. Ibn Hazm enters another controversy, opining that women may be given inspiration by God, referring to the "mujer de Abraham" (i.e., Sarah) and to the "madre de Jesús" María (like Mahoma visited by the "ángel Gabriel"). After publication of Asín's 5-volume study, additional writings of Ibn Hazm were discovered in the library of the Fatih Mosque in Istanbul, including legal "responsa", to which Asin devoted an article.