Sahih al-Bukhari 5354

Muhammad ibn Kathir narrated to us: Sufyan informed us, from Saʿd ibn Ibrahim, from ʿAmir ibn Saʿd, from Saʿd, may God be pleased with him, who said: The Prophet, peace and blessings be upon him, used to visit me when I was ill in Mecca. I said, “I have wealth. May I bequeath all of it?” He said, “No.” I asked, “Half?” He said, “No.” I asked, “A third?” He said, “A third, and a third is much. It is better for you to leave your heirs wealthy than to leave them dependent, holding out their hands and begging from people. Whatever you spend is charity for you, even the morsel you place in your wife mouth. Perhaps God will raise you up, and some people will benefit through you while others will be harmed through you.”