Basics of blood transaction in the thought of Imami jurists

Blood is one of the eleven impurities that is recognized in the holy sharia of Islam and its use is also forbidden. In the past, not only were there no benefits to blood, but there was also hatred. Most of the first Sadr jurists who were exposed to this issue have expressed fatwas sanctifying blood trade. The sayings of the jurists in this matter are: absolute sanctity, detail between impure and pure blood, independent sanctity and permission along with other objects, permission to trade in cases of lawful interests. The arguments of those who believe in sanctity are: consensus, non-taxation of blood, impurity of blood, originality of corruption in contracts, support for sin, verses, and narrations. But today, with the advancement of medical knowledge and the various uses of blood, especially human blood and its products, it has found a special vital place. The subject of time and place and its requirements in the field of jurisprudence is something that has been evident in the jurisprudence of Imam Khomeini since the pre-Islamic period, and has been directly related to the nature of realism in his jurisprudence. One example of this dynamic ijtihad is his views on the blood transaction. This article tries to study the blood transaction according to the opinions of Imami jurists.