Sunnah.com reference : Book 7, Hadith 48English translation : Book 7, Hadith 822Arabic reference : Book 7, Hadith 819
Narrated 'Urwa al-Bariqi (RA):
The Prophet (ﷺ) gave him a Dinar to buy a sacrificial animal or a sheep. He bought two sheep with it, sold one of them for a Dinar and came back to him with a goat and a Dinar. So he invoked blessings on him in his business dealings, and he was such that if he had bought soil (of the earth) he would have made profit from it.

[Reported by al-Khamsah except an-Nasa'i].
وَعَنْ عُرْوَةَ الْبَارِقِيِّ ‏- رضى الله عنه ‏- { أَنَّ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-أَعْطَاهُ دِينَارًا يَشْتَرِي بِهِ أُضْحِيَّةً, أَوْ شَاةً, فَاشْتَرَى شَاتَيْنِ, فَبَاعَ إِحْدَاهُمَا بِدِينَارٍ, فَأَتَاهُ بِشَاةٍ وَدِينَارٍ, فَدَعَا لَهُ بِالْبَرَكَةِ فِي بَيْعِهِ, فَكَانَ لَوْ اِشْتَرَى تُرَابًا لَرَبِحَ فِيهِ }  رَوَاهُ اَلْخَمْسَةُ إِلَّا النَّسَائِيَّ  1‏ .‏‏1 ‏- صحيح.‏ رواه أبو داود ( 3384 )‏، والترمذي ( 1258 )‏، وابن ماجه ( 2402 )‏، وأحمد ( 4 / 375 )‏.‏