Sahih Bukhari Volume 007, Book 064, Hadith Number 268.
Narrated By Abu Huraira : "The Prophet said, 'The best alms is that which is given when one is rich, and a giving hand is better than a taking one, and you should start first to support your dependents.' A wife says, 'You should either provide me with food or divorce me.' A slave says, 'Give me food and enjoy my service." A son says, "Give me food; to whom do you leave me?" The people said, "O Abu Huraira! Did you hear that from Allah's Apostle ?" He said, "No, it is from my own self."