Zakat (Kitab Al-Zakat)
Dawud :: Book 9 : Hadith 1669
Narrated Jabir ibn Abdullah:
While we were sitting with the Apostle of Allah (peace_be_upon_him) a man brought him some gold equal in weight to an egg, and said: Apostle of Allah, I have got this from a mine; take it; it is sadaqah. I have no more than this. The Apostle of Allah (peace_be_upon_him) turned his attention from him. Then he came to him from his right side and repeated the same words. But he (the Prophet) turned his attention from him. He then came to him from his left side and repeated the same words. But he (again) turned his attention from him. He then came to him from behind. The Apostle of Allah (peace_be_upon_him) took it and threw it away. Had it hit him, it would have hurt him or wounded him. The Apostle of Allah (peace_be_upon_him) said: One of you brings all that he possesses and says: This is sadaqah. Then he sits down and spreads his hand before the people. The best sadaqah is that which leaves a competence.