What is the ruling of Islamic law regarding a son's demand for one-third the value of the first house and the costs of its construction, his share of the remaining part of the house, the value of the second house built on agricultural land which he expanded with his own money, the costs of his sisters' marriages, and the value of the qirāt that he purchased and the father bequeathed, given that the heirs object to the first three demands but agree only to the last one along with the costs of the youngest daughter's marriage?

"Whatever you spent on your parents and siblings, if it was with an agreement for compensation or with the intention of claiming it back, then you are allowed to claim it, and what you spent will be returned to you. However, if your intention was to donate it, then you are not allowed to retract it, because retracting a gift is forbidden. So, if the building of the house, or the increase in agricultural land, or the costs of marriage were done with the intention of getting them back, then you have the right to do so. But if it was with the intention of donating or without a clear intention, then you do not have the right to retract it, because 'the one who retracts his gift is like a dog that returns to its vomit.'"