Ruling on a father distributing his estate to his children during his lifetime

This is a message received from the questioner (H. Z. F), who says: Your Eminence, what is the ruling in Islam—in your view—on parents writing a bequest of what they own to their children before death?
Answer: This requires detail: If it is a gift to their children, and they give them a gift while they are healthy and sound, there is no harm in a gift, provided there is justice, giving the male the share of two females, without favoring some over others. They give to all of them, with the male having the share of two females, and there is no harm. As for a bequest after death, if it is a bequest from an illness, no, if there are other heirs such as the wife or the husband or the parents, he does not make a bequest to the heirs. The heirs, no. The Prophet (peace and blessings be upon him) said: And if he wants to make a bequest, he has no right to more than one-third. He bequeaths one-third or less. Yes. To non-heirs.
The presenter: May Allah reward you with good.