Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: I bought olive oil in the market. A man came to me and offered me a higher profit, an amount with which I was satisfied. When I wanted to finalize the deal by shaking his hand, a person grabbed my arm from behind and held my hand. When I turned around, it was Sayyiduna Zayd bin Harith (may Allah be pleased with him). He said: "Do not sell it until you have taken it to your home, because the Noble Prophet (peace and blessings be upon him) forbade doing so."