It is narrated from Sayyiduna Ibn Amr, may Allah be pleased with him, that a man asked the Prophet Muhammad, peace and blessings be upon him, "I do not have any wealth, but I have an orphaned nephew." The Prophet Muhammad, peace and blessings be upon him, said: "You may eat from your orphaned nephew's wealth that which does not fall under extravagance," or he said: "Do not make your wealth a ransom in exchange for his wealth."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 7022