‘Urwa b. Abul Ja‘d al-Bariqi said that Allah's Messenger ﷺ gave him a dinar to buy a sheep for him. He bought two sheep for him, sold one of them for a dinar and brought him a sheep and dinar. So Allah's Messenger ﷺ invoked a blessing on him in his business dealings, and he was such that if he had bought dust he would have made a profit from it. Bukhari transmitted it.