Islamic law, as interpreted today, unanimously classifies same-sex sexual activity as haram (prohibited).
Islamic law declares that sexual fulfillment can only occur within heterosexual marriages. Consequently, as homosexual activity involves individuals of the same sex, it is deemed unlawful, and transgresses the boundaries of marriage.
Homosexuality exists in practice in the Muslim world but is considered unlawful, abnormal, and even punishable under Islamic law.
The prohibition of the homosexual act can be traced back to the biblical teachings against sodomy.