Marriage according to the Quran 

Marriage is a sign of Allah

1. “And of His signs is that He created for you from yourself mates that you may find tranquility in them; and He placed between you affection and mercy. Indeed in that are signs for people who give thought.” (Sura Rum, Ayat-21)
2. Allah does not like people who stay away from Marriage
   1. Marry, even if to a slave man: “Whoever cannot afford to marry free Muslim women, should marry one of the Muslim slave girls in your possession; Allah has full knowledge of your faith.”
   2. Encourage marriage: “Arrange marriages between the single men and women among you and between your slave men and slave women, who are righteous. If they be indigent, Allah will provide means for them out of His bounty: Allah has boundless resources and He is AllKnowing”.(Sura Noor-32)
3. For those unable to marry: “And those, who cannot find a match, should observe continence till Allah provides them with means out of His bounty……….” (Sura Noor- 33)
4. It is forbidden to marry a Mushrik: “Do not marry Mushrik women unless they believe; a slave woman who believes is better than a free woman who does not believe, even though the latter may appear very attractive to you. (Likewise) do not wed your women to Mushrik men unless they believe; a slave man who believes is better than a free man who does not, even though he may be very pleasing to you. These mushrik people invite you to the Fire while Allah by His grace invites you to the Garden and His pardon, and makes His revelation plain to the people so that they should learn a lesson and follow the admonition.”
5. Relatives with whom marriage is forbidden
   1. “And marry not women whom your fathers married - except what is past: It was shameful and odious - an abominable custom indeed.”(Sura Nisa’a 22)
   2. “Forbidden to you are your mothers, daughters, sisters, paternal aunts, maternal aunts, brother’s daughters, sister’s daughters, your foster mothers who have given a suckle to you, your foster sisters, who have taken a suckle with you, the mothers of your wives, the daughters of your wives whom you have brought up, the daughters of those wives with whom you have conjugal relations, but not of those wives with whom you have had no conjugal relations, and it is not sinful for you to marry their daughters(after having divorced them);--- and also forbidden to you are the wives of your sons who are from your loins, and it is unlawful for you to keep two real sisters as wives at one and the same time, though what happened in the past is expected, and Allah is indeed Forgiving, Merciful. And forbidden to you are the wedded wives of other people except those who have fallen in your hands(as prisoners of wars); this is the law of Allah that has been prescribed for you. With the exception of the above, it has been made lawful for you to seek in marriage with your wealth any other women provided that you keep them in wedlock not in licentiousness.”
6. Marrying someone from the People of the Book
   1. “This day all good things have been made lawful to you. The food of the People of the Book is permitted to you, and your food is permitted to them. And permitted to you are chaste women, be they either from among the believers or from among those who have received the Book before you, provided you become their protectors in wedlock after paying them their bridal-due, rather than go around committing fornication and taking them as secret-companions. The work of he who refuses to follow the way of faith will go waste, and he will be among the utter losers in the Hereafter.” (Sura Maidah- 5)
7. If you cannot do justice amongst your wives then stick to only one
   1. “If you fear that you might not treat the orphans justly, then marry the women that seem good to you: two, or three, or four. If you fear that you will not be able to treat them justly, then marry (only) one, or marry from among those whom your right hands possess. This will make it more likely that you will avoid injustice.”(Sura Nisa’a-3)
8. Giving Mehr
   1. And give the women (on marriage) their dower as a free gift; but if they, of their own good pleasure, remit any part of it to you, Take it and enjoy it with right good cheer.(Sura Nisa’a – 4)