The main concerns that Muslims raise with regard to surrogacy relate to issues of adultery and parental lineage. Many Muslim groups claim that surrogate motherhood is not permitted under Islamic law because it is akin to "zina" (adultery) which is strictly prohibited in the Muslim religion. This is based on the fact that in gestational surrogacy, the surrogate carries the fertilized egg of someone who is not her legal husband, thus transgressing the bounds of Allah as stated in the Quran: “Those who guard their private parts except from their spouses…” (Al-Mu’minun 23:5)  “Whosoever goes beyond that are indeed transgressors” (Al-Mu’minun 23:7). Additionally, arguments have been raised that surrogacy interferes with the preservation of lineage (hifz al-nasl) which is one of the five universals and objectives of Sharia law. For Muslims, the Qur’anic injunction that “their mothers are only those who conceived them and gave birth to them ("waladna hum)"” denies the distinction between genetic and gestational mothers, hence complicating notions of lineage within the context of surrogacy, which are central to the Muslim faith.