The permissibility of sex with the captive women was taken for granted by all the men involved, including the Prophet himself. (There is no indicatio… - Kecia Ali

A surprising assertion about consent also appears in a recent monograph by a scholar of Islamic legal history who declares in passing that the Quran forbids nonconsensual relationships between owners and their female slaves, claiming that “the master–slave relationship creates a status through which sexual relations may become licit, provided both parties consent.” She contends that “the sources” treat a master’s nonconsensual sex with his female slave as “tantamount to the crime of zina [illicit sex] and/or rape.” Though I believe in the strongest possible terms that meaningful consent is a prerequisite for ethical sexual relationships, I am at a loss to find this stance mirrored in the premodern Muslim legal tradition, which accepted and regulated slavery, including sex between male masters and their female slaves.

These questions arise urgently when one considers that classical Islamic law accepts both slavery as an institution and the sexual use of female slaves, whereas the overwhelming majority of Muslims today completely reject all forms of slavery... Yet quite a number of late twentieth-century and early twenty-first-century Muslim authors and laypeople gloss over the existence of slavery, and especially concubinage, in Muslim history and texts... Given that the vast majority of contemporary Muslims reject slavery, many have chosen to ignore the issue. Rather than reiterate the classical religious permission for slavery and slave concubinage, even to oppose it, they seem to believe that a moderate or progressive agenda is better served by emphasizing the contemporary agreement that slavery, and especially concubinage, is forbidden as completely outside the bounds of Muslim sexual morality. Although a few authors deny the validity of slave concubinage outright, asserting that “those jurists of Islamic law who laid down the rule that a master may have [a] sexual relationship with his female slave without marriage are totally mistaken,” most simply ignore what prevailed as the consensus for over a millennium.

When directly confronted, in a polemical context, with historical and textual permission for the sexual use of unfree women, Muslim authors sometimes respond defensively, seeking to protect Islam’s reputation. It may be argued, for instance, that Islamic “slavery” bore no resemblance to harsh American chattel slavery. In this view, the Qur’anic permission for men to have sex with “what their right hands possess” was merely a way of integrating war captives into society. Sometimes, it is added that the captives would be “integrated” into the Muslim community through becoming the property of a specific man who would be responsible for them and their offspring. Whatever merit these arguments have in the context of inter-communal polemics and apologetics, however, they are insufficient for internal Muslim reflection. In particular, the notion that women would be integrated into society by bearing offspring to their owners or captors does not apply to the case of the Bani Mustaliq: the rationale for the captors to practice withdrawal, according to other accounts, is that they did not want to impregnate the women lest they spoil their chances to ransom them.