Some Marriage Conditions That Must Not Exist

The Noble Qur'an 24:3

The adulterer marries not but an adulteress or a Mushrikah and the adulteress none marries her except an adulterer or a Muskrik [and that means that the man who agrees to marry (have a sexual relation with) a Mushrikah (female polytheist, pagan or idolatress) or a prostitute, then surely he is either an adulterer, or a Mushrik (polytheist, pagan or idolater, etc.) And the woman who agrees to marry (have a sexual relation with) a Mushrik (polytheist, pagan or idolater) or an adulterer, then she is either a prostitute or a Mushrikah (female polytheist, pagan, or idolatress, etc.)]. Such a thing is forbidden to the believers (of Islâmic Monotheism).

The Noble Qur'an 5:5

(Lawful to you in marriage) are chaste women from the believers and chaste women from those who were given the Scripture (Jews and Christians) before your time, when you have given their due Mahr (bridal money given by the husband to his wife at the time of marriage), desiring chastity (i.e. taking them in legal wedlock) not committing illegal sexual intercourse, nor taking them as girl-friends.

The Noble Qur'an Al-Mumtahinah 60:10

O you who believe! When believing women come to you as emigrants, examine them, Allâh knows best as to their Faith, then if you ascertain that they are true believers, send them not back to the disbelievers, they are not lawful (wives) for the disbelievers nor are the disbelievers lawful (husbands) for them. But give the disbelievers that (amount of money) which they have spent [as their Mahr] to them. And there will be no sin on you to marry them if you have paid their Mahr to them. Likewise hold not the disbelieving women as wives, and ask for (the return of) that which you have spent (as Mahr) and let them (the disbelievers, etc.) ask back for that which they have spent. That is the Judgement of Allâh. He judges between you. And Allâh is All-Knowing, All-Wise.

Hadith - Malik's Muwatta Book 28, Number 28.8.21

Yahya related to me from Malik from Yahya ibn Said that Said ibn al-Musayyab said, "It is forbidden to be married to a woman and her paternal or maternal aunt at the same time, and for a man to have intercourse with a female slave who is carrying another man's child."

Hadith - Muwatta 28.54

Yahya related to me from Malik from Rabia ibn Abi Abd ar-Rahman that al-Qasim ibn Muhammad and Urwa ibn az-Zubayr said that a man who had four wives and then divorced one of them irrevocably, could marry straightaway if he wished, and he did not have to wait for the completion of her idda.

Hadith - Malik's Muwatta Book 28, Number 28.11.26:

Yahya related to me from Malik from Abu'z-Zubayr al-Makki that a case was brought to Umar about a marriage which had only been witnessed by one man and one woman . He said, "This is a secret marriage and I do not permit it. Had I been the first to come upon it, I would have ordered them to be stoned."

Hadith - Sahih Bukhari, Volume 3, Book 48, Number 813, Narrated Ibn 'Abbas

The Prophet said about Hamza's daughter, "I am not legally permitted to marry her, as [Islamic] foster relations are treated like blood relations (in marital affairs). She is the daughter of my foster brother."