Introduction: Sunni schools agree that for the matters not expressly dealt with in the Texts, along with Ijma, the law can be deduced in those matters by the help of Qiyas. Sunni jurist do not admit that extension of law through Qiyas amounts to innovation, as Shia authorities consider. Simple, Qiyas is a process in which reason of a text is applied in a particular way to find out the solution or law in this regards. As a source of law it is subordinate to Quran, Sunnah and Ijma because these are provide base for the original case or authorities in deducing law through Qiyas. Qiyas Meaning and Concept: Literally Qiyas means "to measure or measuring one thing in terms of another". According to Hanafi Jurists, Technically it is an extension of law from the original text to which the process is applied. According to Maliki school of thought, The accord of a deduction with original text in respect of the illat or effective cause of its law. According to Shafa...