[1] The reason for intertribal marriages was to ensure the protection and possession of the children the couple would produce.
[2] Women in some intertribal marriages had more freedom and retained the right to dismiss or divorce their husbands at any time.
[2] Beena is a form of marriage used in pre-Islamic Arabia, in which a wife would own a tent of her own, within which she retained complete independence from her husband, according to William Robertson Smith.
[7] An example of this incident was described to the Islamic prophet Muhammad, who replied that the child belongs to the one on whose bed it is born.
[7][8] As with all other forms of pre-Islamic marriage, Nikah Istibdaa was largely abolished in Arabia during the 7th century CE.