7th Century: Unmarried Sex Relation with Slave women

Did Islam in 7^th century allow a Muslim man to treat the slave women as concubines (mistresses) without a legally binding marriage?

Islam does not support  any form of concubinage (a woman living with a man but not married), and categorically prohibits sexual relations between a man and a woman unless they are lawfully married to one another.

In this respect, the only difference between a "free" woman and a slave is that whereas the former must receive a dower from her husband,

no such obligation is imposed on a man who marries his rightfully owned slave (lit., "one whom his right hand possesses") - that is, a woman taken captive in a "holy war" (jihad ) waged in defence of the Faith or of liberty 

for, in such a case, the freedom conferred upon the bride by the very act of marriage is considered to be equivalent to a dower.


The above refers to the previously revealed, general laws relating to marriage

(see Quran  Chapter 2:221,

Quran Chap 4: Verses 3-4 and Verses 19-25,