We used to say when we were children: The one who takes back his gift is like the dog that vomits, then goes back to its vomit. And we did not know that the Messenger of Allah (ﷺ) had used this as a likeness until Ibn 'Abbas (رضي الله عنه) told us that the Messenger of Allah (ﷺ) said: "The one who takes back his gift is like the dog that vomits, then goes back to its vomit.”