" The Messenger of Allah ruled that what a slave earns belongs to his guarantor."
Sunan an-Nasa'i Book 44, Hadith 42
← Previous Hadith Abu Al- Qasim said: "Whoever buys a Musarrah, he has the choice (of annulling the deal) for three days. If the wishes ti keep it, he may keep it, and if he wishes to return it, he may return it, along with a Sa of daters, not wheat." (Sahih )

Sunan an-Nasa'i Book 44, Hadith 41 Next Hadith → "The Messenger of Allah forbade meeting (the traders on the way) a Muhajhir selling for a Bedouin, keeping the milk in the udder of an animal (so as to increase its price), artificially inflating prices, a man to urge the cancellation of sale already agreed upon and a woman to ask that her sister (in faith) be divorced."

Sunan an-Nasa'i Book 44, Hadith 43