It is narrated from Abdur Rahman bin Abd al-Qari that Sayyiduna Umar bin Khattab, may Allah be pleased with him, said: What is the matter with people that they give gifts to their sons and then take them back? If the son dies, they say: My wealth is in my possession, I have not given it to anyone. If the father dies, he says: That belongs to my son, I have already given it to him as a gift. Whoever gives a gift and does not make it effective, that is, the one to whom it is given does not take possession of it in such a way that when the recipient dies, it passes to his heirs, then that gift is invalid.

Imam Malik, may Allah have mercy on him, said that if a person gives something to someone for reward, does not want anything in return, and makes people witnesses to it, then it will be executed, except if the giver dies before the recipient takes possession. If the giver wants to keep it after giving it, this is not permissible; the recipient can forcibly take it from him whenever he wishes.

Imam Malik, may Allah have mercy on him, said that if Zaid gave something to Amr for the sake of Allah, and after that Zaid died, and Amr brought one witness, then Amr will have to take an oath. If he takes the oath, then with one testimony and one oath, that thing will be given to Amr. If Amr refuses to take the oath, then an oath will be taken from Zaid. If Zaid refuses to take the oath, then that thing will have to be given, when Amr has at least one witness. If there is not even one witness, then Amr's claim alone will not be heard.

Imam Malik, may Allah have mercy on him, said that if a person gives something for the sake of Allah, and then the recipient dies before taking possession, then his heirs will take his place. If the giver dies before the recipient takes possession, then the recipient will not receive anything, because due to the lack of possession, the gift becomes void. If the giver withholds it and there are no witnesses to the gift, then it is not permissible. When the recipient stands to take it, he may take it.