Natural law
Islamic natural law

Abū Rayhān al-Bīrūnī, a medieval scholar, scientist, and polymath, understood "natural law" as the survival of the fittest. He argued that the antagonism between human beings can be overcome only through a divine law, which he believed to have been sent through prophets. This is also said to be the general position of the Ashari school, the largest school of Sunni theology, as well as Ibn Hazm. Conceptualized thus, all "laws" are viewed as originating from subjective attitudes actuated by cultural conceptions and individual preferences, and so the notion of "divine revelation" is justified as some kind of "divine intervention" that replaces human positive laws, which are criticized as being relative, with a single divine positive law. This, however, also entails that anything may be included in "the divine law" as it would in "human laws", but unlike the latter, "God's law" is seen as binding regardless of the nature of the commands by virtue of "God's might": since God is not subject to human laws and conventions, He may command what He wills just as He may do what He wills.
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