Some of the rulings that follow from the marriage contract.

The Shaykh : And among them: that is, among the benefits of marriage. Yes. And among what follows from marriage is that if a man marries a woman, if a man marries a woman—no, no, yes? Above...—among what follows from marriage is that if a man marries a woman, her mother and her grandmothers, whether from the father’s side or the mother’s side, become forbidden for him to look at. So the wife’s mother, in the past, had to observe hijab from the husband. After the contract? She does not observe hijab. He greets her, he is alone with her, he travels with her; she becomes one of his mahram relatives.
The husband’s father: If a man marries a woman, the husband’s father becomes a mahram for the wife. He is alone with her, he faces her, he travels with her.
The husband’s son: If a man marries a woman, his son becomes a mahram for her. Look, at first he was a stranger in the market. Now he has become a mahram for her. He comes to her in the house, he is alone with her, he travels with her, she uncovers her face for him.
The wife’s daughter: If a man marries a woman who has a daughter, her daughter becomes a mahram for him when he has intercourse with her mother. This is among what follows from the marriage contract. What follows from the marriage contract is inheritance. For example, a woman from Tamim marries a man from Quraysh. Is there kinship between them? Yes? No. If this man dies and he has no children, how much of his wealth does the woman inherit? Answer, everyone. A quarter. She takes a quarter of his wealth. And if she dies after him and she has no children, she takes half. Look at the bond between the spouses. Likewise, what follows from marriage is that if a man divorces his wife before consummation and he has given her a mahr of ten thousand, how much of the ten thousand does she inherit? She inherits five thousand. By the saying of Allah the Exalted: . She inherits half the mahr even though he did not consummate the marriage. And if he consummated the marriage and she remained with him for an hour, then he left and divorced her, how much of the mahr does she inherit? She inherits the full mahr. Good. If he divorced her before consummation, a man married a woman and then, before he consummated the marriage, he decided to divorce her. Does she have to observe a waiting period? No. She does not have to observe a waiting period. By the saying of Allah the Exalted: . Good, if he divorced her in the morning before he consummated the marriage and before he was alone with her, then a man came in the evening and married her, is it permissible or not? It is permissible, because she does not have a waiting period. Good, if he died after her, a man contracted marriage with a woman and died before he consummated the marriage. For example, the consummation was to be in the month of Rabi', and he had contracted the marriage in the month of Safar, then he died. Does she have to observe a waiting period? Yes, she has to observe a waiting period. Look at the difference between divorce and death. If he dies after her before he consummates the marriage and is alone with her, the waiting period becomes obligatory for her. Does she have inheritance? Yes, she has inheritance. The mahr he gave her? She has the full mahr, meaning if he gave her a mahr of ten thousand, then he died before he consummated the marriage, she has the full mahr. And she has to observe the waiting period. And she has inheritance.