English translation
3722. It was narrated that Tâwûs said: "The Messenger of Allâh ﷺ said: 'It is not permissible for anyone to give a gift then take it back, except from one's son.'" Tâwûs said: "When I was young I used to hear (the phrase), 'The one who goes back to his vomit,' but we did not realize that this was a similitude." He said: "The likeness of the one who does that is that of a dog which eats then vomits, then goes back to its vomit." (Šahîh)
