Sayyiduna Sahl bin Sa’d Sa’idi (may Allah be pleased with him) narrates: An Ansari man came to the service of the Prophet (peace and blessings of Allah be upon him) and said:“O Messenger of Allah! What is your opinion about a person who finds someone with his wife? If he kills the woman, you people will kill him. What should such a person do with the woman?”So Allah Almighty revealed the command about them, which is mentioned in the Qur’an regarding those who perform li’an (mutual cursing). The Prophet (peace and blessings of Allah be upon him) said to him:“Allah Almighty has decided between you and your wife.”The narrator states: Both husband and wife performed li’an in the mosque, and I was also present there with the Prophet (peace and blessings of Allah be upon him). (The narrator says) After that, this method became established regarding such husband and wife that separation would be made between those who performed li’an. The narrator says: The woman was pregnant, and the man denied the pregnancy, so after that, the son of that woman would be called by his mother’s name. After that, this method became established that such a woman would inherit from her child, and that child would inherit from the woman, as she had appointed as the inheritance of the son.