Is it permissible to distinguish one of the sons with a gift?

Question:
This person is asking, he says that

Answer:
a person gave his eldest son a house, then he died and did not give his other sons anything. We say this is not permissible; it is not permissible to favor some of the children over others. The Prophet (peace and blessings be upon him) said: This is not permissible. And it is obligatory for this person to reconcile with his remaining brothers, to reconcile with them regarding this matter, so that what is in his possession becomes lawful and so that the deceased’s liability is cleared; they reconcile among themselves.