"Fatimah bint Hubairah came to the Messenger of Allah has a chain of fire in her hand?' Then he went out, without sitting down. Fatimah sent the chain to the market and sold it, and she bought a slave with the money, and set him free. He was told of that and he said: 'Praise be to Allah, Who has saved Fatimah from the Fire.'"
Sunan an-Nasa'i Book 48, Hadith 101