Sahih Muslim | Book 19 | Hadith Number 4376
Narrated by Anas
It has been narrated by Anas that (after his migration to Medina) a person placed at the Prophet's (may peace be upon him) disposal some date-palms growing on his land until the lands of Quraiza and Nadir were conquered. Then he began to return to him whatever he had received. (In this connection) my people told me to approach the Messenger of Allah (may peace be upon him) and ask from him what his people had given him or a portion thereof, but the Messenger of Allah (may peace be upon him) had bestowed those trees upon Umm Aiman. So I came to the Prophet (may peace be upon him) and he gave hem (back) to me. Umm Aiman (also) came (at this time). She put the cloth round my neck and said: No, by Allah, we will not give to, you what he has granted to me. The Holy Prophet (may peace be upon him) said: Umm Aiman, let him have them and for you are such and such trees instead. But she said: By Allah, there is no god besides Him. No, never ! The Holy Prophet (may peace be upon him) continued saying: (You will get) such and such, until he had granted her ten times or nearly ten times more (than the original gift).