It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever gives a gift (hibah) has more right to his gift as long as he has not been given something in return for it; and if he goes back on his gift, he is like one who vomits and then eats his own vomit."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 11269