Marry of the women, who seem good to you, two or three or four; and if ye fear that ye cannot do justice (to so many) then one (only) or (the captives) that your right hands possess." This verse plainly allows a man to have up to four wives (Allah conveniently granted Muhammad an exception... on the authority of Muhammad, of course). According to the Hadith, the "justice" spoken of merely refers to the dowry provided the bride, not the treatment accorded following the wedding.