What is the legal ruling for someone who alone witnesses a woman committing adultery, and is he required to produce four witnesses or is it sufficient for him to give four testimonies? What if she denies it in front of her family? And what is the ruling if a relative asks him, wanting to marry her; should he tell him the truth or remain silent?

If someone witnesses a person committing adultery, it is not permissible for him to testify against them unless there are four witnesses; otherwise, he would be considered a slanderer deserving of punishment. If the woman denies adultery and the four witnesses do not come forward, her word is accepted, and her accuser is punished, except for the husband, who has the option of mula'anah (oath of condemnation). It is commendable to conceal the sin of one who commits adultery, and one is not obligated to report it, unless the person is openly defiant in their sin. If asked about a matchmaker who committed adultery, and she has repented, it is not permissible to inform the suitor about her past. However, if she persists in her sin, then he must be warned with ambiguous phrases without explicitly mentioning adultery.