Is a father entitled to reclaim the wedding gift he gave to his daughter? Is it considered a trust (wadi'ah)? And what is the difference between a gift (hadiyah) and a donation (hibah)?

It is permissible for a father to retract a gift he gave to his child if the money remains and no third-party rights are attached to it, or if it has not increased in a connected manner. This is based on the Prophet's (peace and blessings be upon him) saying: "It is not lawful for anyone to give a gift and then take it back, except a father for what he gives to his child."

If a father gave a sum of money to his daughter but did not give his son the same, he must equalize between them, either by giving the son the same amount he gave the daughter, or by taking back what he gave the daughter.

As for the dowry you deposited with your father, you have the right to demand it back according to the majority of jurists.

A gift (hadiya) and a donation (hiba) have similar rulings; a gift is a type of donation, and both involve transferring ownership during one's lifetime without compensation.