What is the Sharīʿah ruling on disclosing an old rape story that resulted in a child who was not the legitimate son of the husband, knowing that this son has seized the inheritance of his legitimate sisters, and is it obligatory to disclose this story to restore rights to their owners, or is it obligatory to conceal it?

The child is attributed to his father as long as he was born on his bed and the father did not deny him through li'an, based on the Prophet's (peace be upon him) saying: "The child is for the bed." The husband's absence does not negate his lineage. DNA testing is not relied upon to negate lineages that are religiously established, because it contradicts the fundamental principle and opens the door to doubts. The resolution of the Islamic Fiqh Council states: "It is not permissible to use genetic fingerprinting with the aim of confirming the validity of lineages that are religiously established." It is not permissible to challenge a child's lineage or accuse a man of adultery without proof, because that is slander (qadhf), and it is one of the major sins. It is obligatory to advise the man to enable his sisters to inherit, because that is injustice and a prohibition of what Allah the Almighty has enjoined. If he does not comply, the matter can be raised to the Sharia judiciary to reclaim the right.