"Also (forbidden are) women already married, except those whom your right hands possess. Thus has Allah ordained for you. All others are lawful, provided you seek them from your property, desiring chastity, not fornication. So with those among them whom you have enjoyed, give them their required due, but if you agree mutually after the requirement (has been determined), there is no sin on you. Surely, Allah is Ever All-Knowing, All-Wise." - Quran 4:24 (read more)

"So the Quraish and the Ansar became angry and said, "He (i.e. the Prophet, ) gives the chief of Najd and does not give us." The Prophet said, "I give them) so as to attract their hearts (to Islam)." - Sahih Bukhari 4:55:558 (read more)

"There are three types of women with whom a man cannot live unless he carries a rod on his shoulder. The first type is a girl who was brought up this way. Her parents ask her to go to school and she doesn't – they beat her... The second type is a woman who is condescending toward her husband and ignores him... The third type is a twisted woman who will not obey her husband unless he oppresses her, beats her, uses force against her, and overpowers her with his voice." - Muslim cleric on Qatar TV