Musnad Ahmad 28:544

'Abd al-Wahhab narrated to us, Husayn narrated to us, from 'Amr ibn Shu'ayb, from his father, from his grandfather, that a man asked the Prophet, peace and blessings of Allah be upon him, and said: "I have no wealth, and I have an orphan." He said: "Eat from the wealth of your orphan, without being extravagant, nor wasteful, nor accumulating wealth, and without protecting your wealth—or he said—ransoming your wealth with his wealth." (Husayn was in doubt).