Sahih Muslim | Book 5 | Hadith Number 2186
Narrated by Anas
Anas reported that when this verse was revealed: "You will not attain righteousness till you give freely of what you love," Abu Talha said: I see that our Lord has demanded from us out of our property; so I make you a witness, Messenger of Allah, that I give my land known as Bairaha' for the sake of Allah. Upon this the Messenger of Allah (may peace be upon him) said: Give that to your relatives. So he gave it to Hassan b. Thabit and Ubayy b. Ka'b.