Hajjaj bin al-Minhal حجاج بن المنهال · The Book of Gifts

"The likeness of the one who gives a gift then takes it back, is that of a dog which vomits, then goes back to its vomit and eats it."

"The Messenger of Allah said: 'The one who takes back his gift, is like the one who goes back to his vomit.'"

"Some of those who met the Prophet told us that he said: 'The likeness of the one who gives (something), then takes back his gift, is that of a dog which eats, then vomits, then eats its vomit.'"