Ja'far bin Muhammad narrates from his father, who narrates from his grandfather, Sayyiduna Husayn (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) forbade picking dates and harvesting crops at night. Ja'far bin Muhammad says: I think that he forbade this because of the poor.

It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "There is no harm if an animal is traded for two animals, provided that it is hand to hand."

Sayyiduna Khawwat bin Jubayr (may Allah be pleased with him) says: A man passed away, and among the wealth he had made me a trustee of, there was his umm walad (a slave woman who had borne him a child) and his free wife. A dispute arose between the umm walad and the wife. The wife said: "O lowly woman! One day, your ear will be grabbed and you will be sold in the market." The umm walad informed the Messenger of Allah (peace and blessings be upon him) of this. The Prophet (peace and blessings be upon him) said: "An umm walad is not to be sold."

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Do not buy or sell female singers, and do not teach them these (idle matters). There is no good in their trade; rather, their price is unlawful. Regarding this issue, this verse was revealed: 'And among mankind is he who purchases idle talk to mislead (men) from the path of Allah.'" __QUR_N__

It is narrated from Sayyiduna Abu Bakr Siddiq (may Allah be pleased with him) that the Noble Prophet (peace and blessings of Allah be upon him) said: "A body that has been nourished with the unlawful will not enter Paradise."