What is the ruling of Islamic law regarding a man writing over his sole home in his wife's name, thereby disinheriting the remaining heirs?

It appears that the mentioned contract aims to transfer ownership of the house to the wife after the husband's death, which is considered a bequest (wasiyyah). Accordingly, this bequest to an heir is not valid and cannot be enforced unless the other heirs agree to it, based on the hadith: "Indeed, Allah has given every rightful person his right, so there is no bequest for an heir." This was narrated by Tirmidhi and Daraqutni, who added: "Unless the heirs wish otherwise." Furthermore, the intention to deprive other heirs is not permissible.