Preservation of health (hifz al-sihhah) is the most important branch of Islamic medicine since it is primarily concerned with the prevention of illness rather than cure. This book represents one of the few attempts to introduce the role of Islamic medicine, although Chapter One provides information about a historical background of the preservation of helath in Islam, its aim is to provide fresh ant timely overview of the major aspects of legal, ritual and spiritual structures of teh Islamic law (shariah). These include the laws related to Ibadah, Islamic family laws, foods and drinks as well as environmental laws, for maintaning and preserving human health. Findings indicated that prevention of any diseases from Islamic medical law presentive cannot attain any real success unless it emanates from an Islamic fundamental teaching, namely: the pillars of Islam. Iman and observance of the Islamic rituals such as Salah, zakah, Sawm and Hajj, have played an important role in shaping the attitude, behavior and model personality of the Muslim, in boosting the spiritual motivation or attitude change, and in disseminating the message of prevention. This indicates that bodily and spiritual health goes hand in hand and that pyscho-spritual balance and health is a primary consideration whereas physical health is a secondary one.

This book addresses the views of the Sunni scholars regarding the importance of genealogical relationship (nasab) in Islamic family law and examines the role of legitimacy on the basis of the legal maxim “al-walad li al-firash”, evidence (al-bayyinah), and doubtful intercourse (wat’ shubhah). It also elucidates the views of the Sunni schools of law on how to establish illegitimacy. For the Sunni jurists, there are several situations that determine the illegitimacy of the child.  A child is considered illegitimate if its birth is the outcome of adultery (zina) or the result of legitimate union but accompanied with imprecation (li‘an). Other circumstances include the birth of the child taking place in less than six lunar months, the father of the child being categorized as one who is incapable of begetting, or the birth as a result of marital relationship considered unlawful because of consanguinity. The book also deals comprehensively with the moral, religious, legal and other aspects of the illegitimate child and the foundling in the works of the Sunni jurists. The status and rights of the illegitimate child and the foundling in the Islamic family law of Malaysia and Brunei are also discussed by referring to some provisions from Federal Territory Act 1984 (Act 303) and Brunei law.

This work constitutes a critical analysis of classical and modern aspects of the concept of istihsan (juristic preference), an important principle in Islamic legal legislation throughout history. Although there has been many research works on the subject, it still requires further investigation on the role and nature of istihsan with regard to a combination of classical and modern approaches. Consisting of four chapters, the author begins by introducing some general principles of Islamic law, before discussing the history of istihsan during the time of the Prophet and his Companions. He also analyses the validity of istihsan as a source of law and discusses the differences among scholars on its method of implementation.