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

We entered upon Ibn `Abbas and he said "Are you not astonished at Ibn Az-Zubair's assuming the caliphate?" I said (to myself), "I will support him and speak of his good traits as I did not do even for Abu Bakr and `Umar though they were more entitled to receive al I good than he was." I said "He (i.e Ibn Az-Zubair) is the son of the aunt of the Prophet and the son of AzZubair, and the grandson of Abu Bakr and the son of Khadija's brother, and the son of `Aisha's sister." Nevertheless, he considers himself to be superior to me and does not want me to be one of his friends. So I said, "I never expected that he would refuse my offer to support him, and I don't think he intends to do me any good, therefore, if my cousins should inevitably be my rulers, it will be better for me to be ruled by them than by some others."

(the wife of the Prophet) I said, "O Allah's Apostle! Will you marry my sister, the daughter of Abu Sufyan." The Prophet said, "Do you like that?" I said, "Yes, for I am not your only wife, and the person I like most to share the good with me, is my sister." He said, "That is not lawful for me." I said, "O Allah's Apostle! We have heard that you want to marry Durra, the daughter of Abu Salama." He said, "You mean the daughter of Um Salama?" I said, "Yes." He said, "Even if she were not my stepdaughter, she is unlawful for me, for she is my foster niece. Thuwaiba suckled me and Abu Salama. So you should not present to me your daughters and sisters." Narrated 'Urwa: Thuwaiba had been a slave girl whom Abu Lahab had emancipated.

I said, "O Allah's Apostle! Marry my sister, the daughter of Abu Sufyan." He said, "Do you like that?" I said, "Yes, for even now I am not your only wife; and the most beloved person to share the good with me is my sister." The Prophet said, "But that is not lawful for me (i.e., to be married to two sisters at a time.)" I said, "O Allah's Apostle! By Allah, we have heard that you want to marry Durra, the daughter of Abu Salama." He said, "You mean the daughter of Um Salama?" I said, "Yes." He said, "By Allah ! Even if she were not my stepdaughter, she would not be lawful for me to marry, for she is my foster niece, for Thuwaiba has suckled me and Abu Salama; so you should neither present your daughters, nor your sisters to me."

Yahya related to me from Malik that he had heard that az-Zubayr ibn al-Awwam said the like of that.

Malik said that if a man had sexual relations with a female slave that he owned, and then he wanted to also have relations with her sister, the sister was not halal for a man until intercourse with the slave-girl had been made haram for him by marriage, setting free, kitaba, or the like of that - for instance, if he had married her to his slave or someone other than his slave.

Allah's Apostle got up on the day of the Conquest of Mecca and said, "Allah has made Mecca a sanctuary since the day He created the Heavens and the Earth, and it will remain a sanctuary by virtue of the sanctity Allah has bestowed on it till the Day of Resurrection. It (i.e. fighting in it) was not made lawful to anyone before me!, nor will it be made lawful to anyone after me, and it was not made lawful for me except for a short period of time. Its game should not be chased, nor should its trees be cut, nor its vegetation or grass uprooted, not its Luqata (i.e. Most things) picked up except by one who makes a public announcement about it." Al-Abbas bin `Abdul Muttalib said, "Except the Idhkhir, O Allah's Apostle, as it is indispensable for blacksmiths and houses." On that, the Prophet kept quiet and then said, "Except the Idhkhir as it is lawful to cut."

Abu Huraira (Allah be pleased with him) reported that Allah's Messenger (may peace be upon him) forbade the (people) meeting the caravan (for entering into business transaction with them), and the selling of goods by a townsman on behalf of a man of the desert, and seeking by a woman the divorce of her sister (from her husband), and outbidding (against one another), and tying up the udders (of animals), and buying of (things) in opposition to one's brother.

The Prophet said, "No town-dweller should sell for a bedouin. Do not practice Najsh (i.e. Do not offer a high price for a thing which you do not want to buy, in order to deceive the people). No Muslim should offer more for a thing already bought by his Muslim brother, nor should he demand the hand of a girl already engaged to another Muslim. A Muslim woman shall not try to bring about The divorce of her sister (i.e. another Muslim woman) in order to take her place herself."

The Prophet sent for the Ansar (and when they came), he asked, 'Is there any stranger amongst you?" They said, "No except the son of our sister." Allah's Apostle said, "The son of the sister of some people belongs to them."

AbuSufyan ibn Sa'id ibn al-Mughirah reported that he entered upon Umm Habibah who presented him a glass of sawiq (a drink prepared with flour and water) to drink. He called for water and rinsed his mouth. She said: O my cousin, don't you perform ablution? The Prophet (saws) said: Perform ablution after eating anything cooked with fire, or he said: anything touched by fire.

Abu Dawud said: The version of al-Zuhri has: O my paternal cousin.

The Prophet (saws) as saying : You women folk, have in silver something with which you adorn yourselves. I assure you that any woman of you who adorns herself with gold which she displays will be punished for it.