Jami' at-Tirmidhi — Hadith #27390

Qutaibah told us, Hushaym told us, on the authority of Abu Bishr, on the authority of Yusuf ibn Mahak, on the authority of Hakim ibn Hazzam, he said, I came to the Messenger of God, may God bless him and grant him peace, and I said A man comes to me and asks me to sell something that I do not have that I can buy for him in the market, then I sell it. He said, “Do not sell what you do not have.” He said, and on the authority of Abdullah bin Omar.