It is also against God’s law to marry married women, unless they have fled the tyranny of their disbeliever husbands who are at war with you. Apart from the above mentioned ones, you may engage in marriage (and not consenting adult sex) contract, with any other woman as long as you mutually agree upon a gift (or a sum) upon the wedding; if you mutually decide later to renegotiate this sum, you may do so as God is the Knowing and the Wise.