It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "My heirs shall not divide even a dinar; whatever I leave, after the maintenance of my wives and the provision for my worker (who manages the property), is charity."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13399