Question 11: I have two sisters, one of whom suffered from a psychological illness, but she has recovered now, praise be to Allaah. However, she cannot stop taking medicine; she is going to take them for the rest of her life. My second sister suffers from rheumatism, and she takes an injection every month as advised by the doctors to control the disease, until she reaches the age of thirty-five. If a man proposes to either of them, should we tell him the truth about their illnesses? If we do not, are we considered sinful? Is this considered treachery that renders the contract nullified? Please advise. May Allaah guide you.
Answer: A suitor must be informed of the illnesses that the bride suffers from if he does not know, so that he can make his decision wisely. This is according to the saying of the Prophet (peace be upon him), A person who deceives us is not one of us (not a true Muslim).… read more here.