And all married women [are forbidden] save those whom your right hands possess [captured in battle]. It is a decree of Allah for you. Lawful unto you are all beyond those mentioned, so that ye seek them with your wealth in honest wedlock, not debauchery. And those of whom ye seek content [through marriage], give unto them their portions as a duty. And there is no sin for you in what ye do by mutual agreement after the duty.

Lo! Allah is ever Knower, Wise. (Quran, 4:24)

O Prophet! Lo! We have made lawful unto thee thy wives unto whom thou hast paid their dowries, and those whom thy right hand possesseth of those whom Allah hath given thee as spoils of war, and the daughters of thine uncle on the father?s side and the daughters of thine aunts on the father?s side, and the daughters of thine uncle on the mother?s side and the daughters of thine aunts on the mother?s side who emigrated with thee, and a believing woman if she give herself unto the Prophet and the Prophet desire to ask her in marriage ? a privilege for thee only, not for the believers ? We are Aware of that which We enjoined upon them concerning their wives and those whom their right hands possess ? that thou mayst be free from blame, for Allah is ever Forgiving, Merciful.

Thou canst defer whom thou wilt of them and receive unto thee whom thou wilt, and whomsoever thou desirest of those whom thou hast set aside (temporarily), it is no sin for thee (to receive her again); that is better; that they may be comforted and not grieve, and may all be pleased with what thou givest them.

Allah knoweth what is in your hearts (O men), and Allah is ever Forgiving, Clement. (Quran, 33:50-51)