It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:
"A man has more right to his gift so long as he has not gotten something in return for it." (JA)
English reference (JA): Vol. 3, Book 14, Hadith 2387 (JA)
Arabic reference (JA): Book 14, Hadith 2477 (JA)