What is the ruling of the Sharia on a wife disclosing the secret of her husband's brother's infertility, and what must the husband do in response to that?

Defects in marriage are divided into two categories: the first establishes the right to annulment, and these are specific defects; the second does not establish the right to annulment but should be disclosed because it is something people dislike, such as infertility, and concealing it is deceit. The majority of jurists agree that infertility is not a defect that establishes the option of annulling the marriage, and it is recommended for a person with infertility to inform the other party before the contract, but it is not obligatory for them to do so. As for informing the wife about the infertility of the questioner's brother, there is no harm in it; rather, some scholars have made it obligatory, as the consulted person is entrusted and should advise with truth and honesty.