Is the money that the wife gave her husband to buy a car, which she stipulates that in the event of selling the car he does not have absolute right to dispose of its value, and in the event of an accident she will not return the amount to him because he is her husband, considered a loan or a gift? And what are the limits of that?

It appears that the wife gave the husband the money to buy a car for her, and she did not authorize him to dispose of its price if it were sold, and her word is to be taken on this matter. As for her demanding compensation for the car, there is a difference of opinion among scholars regarding this, based on their disagreement concerning the issue of guaranteeing borrowed items.