The issue of intellectual rights in the legal works has, due to its importance and long history in jurisprudence and Islamic culture, received much attention by the Shī‘a and Sunnī jurists, and has been subsumed under a special heading. Some of the Sunnī jurists have distinguished between legal and non-legal works, considering the works of the authors of legal works as non-legal and those of others as legal, even if created by a Muslim. Similarly, in case a non-Muslim undertakes to write legal works in relation to Islam, his financial rights are respected and approved, which is an indication of the Muslims' special concern with the promotion of Islam and its values. Thereupon, the present paper, while explaining the legal works, reviews the reasons of the opponents of financial rights of these works and asserts that although legal works enjoy special importance and status, there is no difference between the legal and non-legal works in terms of legality of financial rights, and the reasons proving intellectual property rights would similarly prove as legal the financial rights of both kinds of works. In one aspect, the necessity of fulfilling the intellectual or moral rights in regard to all works, including legal and non-legal, has been agreed upon and even the rights of the legal works have been accepted with more sensitivity by general public, even by the opponents of the financial rights of intellectual works.