The Book on Marriage
كتاب النكاح عن رسول الله صلى الله عليه وسلم
Chapter 39: What Has Been Related About Azl Being Disliked
"Azl was mentined before the Messenger of Allah and he said: 'Why would one of you do that?'"
Chapter 40: What Has Been Related About Dividing Time For The Virgin And The Matron
He (Abu Qilabah) said: "If I wish, I could say: 'The Messenger of Allah said'" but he said: "The Sunnah when a man married a virgin after he already has a wife, is that he stays with her seven (nights). And when he married a matron when he already has a wife, he stays with her three (nights)."
Chapter 41: What Has Been Related About Equality Between Co-Wives
The Prophet would divide (his time) equally between his wives and said: "O Allah! This is my division in what I have control over, so do not punish me for what You have control over which I do not have control over."
The Messenger of Allah said: "When a man has two wives and he is not just between them, he will come on the Day of Judgment with one side drooping."
Chapter 42: What Has Been Related About A Married Couple Who Are Idolaters, Then One Of Them Accepted Islam
"The Messenger of Allah returned his daughter Zainab to Abul-As bin Ar-Rabi with a new dowry and a new wedding."
"The Prophet returned his daughter Zainab to Abul-As bin Ar-Rabi after six years in the first marriage without renewing the marriage."
"A man became a Muslim during the time of the Prophet, then his wife became a Muslim, so he said: 'O Messenger of Allah! She accepted Islam along with me, so return her to me.' So he returned her to him."
Chapter 43: What Has Been Related About a Man Who Died Before Stipulating The Dowry For Her
Ibn Mas'ud was asked about a man who married a woman and he did not stipulate the dowry for her, and he did not enter into her until he died. So Ibn Mas'ud said: "She gets the same dowry as other women, no less and no more, she has to observe the Iddah, and she gets inheritance." So Ma'qil bin Sinan Al-Ashja'I stood and said: "The Messenger of Allah judged the same as you have judged regarding Birwa bint Washiq, a woman of ours." So Ibn Mas'ud was happy about that.