 In principle, "maslaha" is invoked particularly in cases that are not regulated by the Qur'an, the "Sunnah" (the teachings and practices of the Islamic prophet Muhammad), or "qiyas" (analogy).The concept is acknowledged and employed to varying degrees depending on the jurists and schools of Islamic jurisprudence ("maddhab").The application of the concept has been increasingly becoming important since the contemporary legal issues have arisen in the modern times.