Sura 4:24, 34 — Women
[4:24] Also married women, except those whom you own as slaves. Such is the decree of God. All women other than these are lawful for you, provided you court them with your wealth in modest conduct, not in fornication. Give them their dowry for the enjoyment you have had of them as a duty; but it shall be no offence for you to make any other agreement among yourselves after you have fulfilled your duty. Surely God is allknowing and wise.
[4:34] Men have authority; over women because God has made the one superior to the other, and because they spend their wealth to maintain them. Good women are obedient. They guard their unseen parts because God has guarded them. As for those from whom you fear disobedience, admonish them, forsake them in beds apart, and beat them. Then if they obey you, take no further action against them. Surely God is high, supreme.
From N. J. Dawood, The Koran (London: Penguin Books, 2003), page 63, 64.