An-Nisa 4:34 الرجال قوامون على النساء بما فضل الله بعضهم على بعض وبما انفقوا من اموالهم فالصالحات قانتات حافظات للغيب بما حفظ الله واللاتي تخافون نشوزهن فعظوهن واهجروهن في المضاجع واضربوهن فان اطعنكم فلا تبغوا عليهن سبيلا ان الله كان عليا كبيرا ٣٤

Men are the protectors and maintainers of women, because Allah has given the one more (strength) than the other, and because they support them from their means. Therefore the righteous women are devoutly obedient, and guard in (the husband's) absence what Allah would have them guard. As to those women on whose part ye fear disloyalty and ill-conduct, admonish them (first), (Next), refuse to share their beds, (And last) beat them (lightly); but if they return to obedience, seek not against them Means (of annoyance): For Allah is Most High, great (above you all).