Amr bin Shu'ayb (may Allah have mercy on him) narrates from his father, from his grandfather (Sayyiduna Abdullah bin Amr, may Allah be pleased with them both), that a Bedouin came to the Messenger of Allah (peace and blessings be upon him) and said: "My father wants to take my wealth." He (peace and blessings be upon him) said: "You and your wealth belong to your father. The purest of what you eat is your own earnings, so eat it with ease."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النفقات / 15748