universalization of commandment by discovering the reason in the view of imam khomeini

one of the important discussions in islamic fiqh and usul (jurisprudence), is the issue of going farther verified religious text (nass), as well as the ways of discovering the reason of a commandment. it seems that this subject has not yet reached its proper place in shi’i fiqh. while imami jurists use some methods to go farther the commandment of the nass, including one named “discovering the basis of commandment” or tanghihe manaat, sunni jurists apply different ones to reach the same goal. considering the vague definitions of these concepts, studying some cases of universalization of commandment by jurists, would be helpful to understand what they exactly meant. in this essay we try to discuss some examples in the works of imam khomeini, getting more familiar with his opinions in fiqh.