Narrated Anas:
"When this Ayah was revealed: By no means shall you attain Al-Birr unless you spend of that which you love (3:92). Or, '...Who is he that will lend to Allah a goodly loan... (2:245)' Abu Talhah - who had a garden - said: 'O Messenger of Allah! My garden is for Allah, and if I was able to keep it secret I would not make it public.' So he said: 'Keep it for your relatives' or 'your close relatives.'" (ES)
English reference (ES): Vol. 5, Book 44, Hadith 2997 (ES)
Arabic reference (ES): Book 47, Hadith 3267 (ES)