Is it permissible for a father to retract what he had designated for his eldest daughter, namely an apartment and a car, or to equalize his children in giving from these assets, knowing that he has no other income besides his salary? And is he obligated to give his younger children a monthly allowance from it for them to save money?

This husband is required to equalize between his two sons and this daughter, even if they were born after the gift, according to Kashshaf al-Qina': "If an heir is born to him after he has divided his wealth, he must equalize between him and them with what has preceded as an obligation, so that fairness may be achieved." The method of equalization is that he should buy for his two sons the equivalent of what he gave to the daughter, or he should reclaim the apartment and the car he gifted and divide them equally among all, based on the saying of Ibn Qudamah: "If he singled out some of them with his gift, or favored some over others in it, he has sinned, and equalization becomes obligatory upon him through one of two matters: either returning what he favored some with, or completing the share of the other."