Wathila b. al-Asqa' told that he heard God's Messenger say, "If anyone sells a defective article without drawing attention to it, he will remain under God’s anger," or, “the angels will continue to curse him.”
Anas said that God’s Messenger offered for sale a saddle-cloth (woolen cloth placed on a camel under the pack-saddle), and a drinking-vessel, saying, “Who will buy this saddle-cloth and drinking- vessel?” A man offered to take them for a dirham and the Prophet asked whether anyone would give more. A man offered him two dirhams and he sold them to him.
Ibn ‘Umar reported God’s Messenger as saying, “If anyone buys palm-trees after they have been fecundated the fruit belongs to the seller unless the buyer makes a proviso; and if anyone buys a slave who possesses property his property belongs to the seller unless the buyer makes a proviso."
Muslim transmitted it and Bukhari transmitted something to the same effect as the first part alone.
Narrated Al-‘Adda’ b. Khalid b. Haudha brought out a document to this effect:
This is what al-‘Adda’ b. Khalid b. Haudha brought from Muhammad, God’s Messenger. He bought from him a slave, or a slave woman, with no disease or wickedness, or anything unlawful*, a transaction between two Muslims.
Tirmidhi transmitted it, saying this is a gharib tradition.
* This might be bad character on the part of the slave or unlawful enslavement.
