he later denies it after reaching maturity and becoming sound of mind, is his denial accepted or not? There is a difference of opinion among the scholars. Some say that his denial is not accepted, because the lineage has been established, and lineage is a bond that does not change. If even clientage—which is attached to lineage—cannot be transferred from the one to whom it belongs to someone else, then likewise, once lineage has been established for this minor or insane person, it cannot be revoked.
Some scholars hold that if they deny it after reaching maturity and becoming sound of mind, the lineage is not established, because we stipulated the confirmation of one who is mature and sane. The confirmation of these two is not taken into account; thus, once maturity and soundness of mind are attained, confirmation becomes necessary. However, the position of the madhhab is that this is not a condition.
The fourth condition is that he be of unknown lineage. If his lineage is known—for example, it is known that this man belongs to such-and-such a tribe and the other belongs to another tribe—then he is not believed, because his claim would negate a known lineage.
If the acknowledger is alive but the person whose lineage is acknowledged is dead, does he inherit from him or not? The author says:
“If he is dead, he inherits from him.”
He explicitly mentions this even though inheritance follows once lineage is established, because some scholars say that if he is dead, the acknowledger does not inherit from him, since he is under suspicion. Thus, a man of unknown lineage, with no known relatives, dies and leaves behind fifty million riyals. After his death, another man comes and says, “He is my full brother; no one disputes this with me.” The author says that the lineage is established and he inherits from him, although he is subject to the utmost suspicion. I think that if the deceased had left nothing but his shroud, he would not have said, “He is my brother,” for fear that the shroud might prove insufficient and that he would be obliged to provide the remainder. But if he leaves fifty million riyals, there is strong cause for suspicion. Yet they say: