Is it permissible for one of the sons to object to his father's distribution of lands years after his death, and after the sons have built upon them, under the pretext of insufficient area or distinguished location?

If the father did not explicitly declare the gift of the land to his son, then it is considered a loan (ariyah) that terminates upon his death, and the land reverts to all the heirs. The building is then appraised, and the heirs pay its value to the son who built it. However, if the father explicitly declared the gift and it was taken possession of during his lifetime, then it is undeniably valid. If he did not act justly in the gift, he has contravened Islamic law, yet the gift remains valid according to most scholars. Sheikh al-Islam Ibn Taymiyyah, however, holds the view that it should be revoked.