«مثل الذي يسترد ما وهب كمثل الكلب يقيء فيأكل قيئه فإذا استرد الواهب فليوقف فليعرف بما استرد ثم ليدفع إليه ما وهب»
The Prophet (peace and blessings be upon him) said:
"The example of the one who takes back what he gifted is like a dog that vomits and then eats its vomit. So if the giver wants to take back what he gave, he should be stopped and told on what basis he is taking it back, then what he gave should be handed over to him."
Hadith Referenceصحیح الجامع الصغیر / حرف الميم / 5836