Hajb bin Sulaiman حاجب بن سليمان · The Book of Adornment

That he came to the Prophet said to him: "Do you have any wealth?" He said: "Yes, all kinds of wealth." He said: "What kinds of wealth?" He said: "Allah has given me camels, cattle, sheep, horses and slaves." He said: "If Allah has given you wealth, then let the effect of Allah's blessing and generosity be seen on you."

"A woman came to me to ask a question, and I said to her: 'There is Ibn 'Umar.' So she went after him to ask him, and I went after her to hear what he would say. She said: 'Tell me about silk.' He said: 'The Messenger of Allah forbade it.'"