‏الهبات : Hadeeth No:3957 Ibn Abbas (Allaah be pleased with them) reported: I heard Allaah's Messenger (sallAllaahu alayhi wa sallam) say: The similitude of one who gives a charity and then gets it back is like that of a dog which vomits and then eats its vomit....

‏الجنة وصفة نعيمها وأهلها‏ : Hadeeth No:6814 This hadith has been narrated on the authority of Abfi Huraira with the same chain of transmitters but with this change of wording that the Prophet (may. sallAllaahu alayhi wa sallam) said: It reached at its base and you heard its sound....