Sahih al-Bukhari, Volume 4, Book 56, Hadith 836 (USC-MSA) ⓘ

Narrated `Urwa: That the Prophet gave him one Dinar so as to buy a sheep for him. `Urwa bought two sheep for him with the money. Then he sold one of the sheep for one Dinar, and brought one Dinar and a sheep to the Prophet. On that, the Prophet invoked Allah to bless him in his deals. So `Urwa used to gain (from any deal) even if he bought dust. (In another narration) `Urwa said, "I heard Allah's Messenger saying, "There is always goodness in horses till the Day of Resurrection." (The subnarrator added, "I saw 70 horses in `Urwa's house.') (Sufyan said, "The Prophet asked `Urwa to buy a sheep for him as a sacrifice.")

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، أَخْبَرَنَا سُفْيَانُ، حَدَّثَنَا شَبِيبُ بْنُ غَرْقَدَةَ، قَالَ سَمِعْتُ الْحَىَّ، يُحَدِّثُونَ عَنْ عُرْوَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم أَعْطَاهُ دِينَارًا يَشْتَرِي بِهِ شَاةً، فَاشْتَرَى لَهُ بِهِ شَاتَيْنِ، فَبَاعَ إِحْدَاهُمَا بِدِينَارٍ وَجَاءَهُ بِدِينَارٍ وَشَاةٍ، فَدَعَا لَهُ بِالْبَرَكَةِ فِي بَيْعِهِ، وَكَانَ لَوِ اشْتَرَى التُّرَابَ لَرَبِحَ فِيهِ‏.‏ قَالَ سُفْيَانُ كَانَ الْحَسَنُ بْنُ عُمَارَةَ جَاءَنَا بِهَذَا الْحَدِيثِ عَنْهُ، قَالَ سَمِعَهُ شَبِيبٌ مِنْ عُرْوَةَ، فَأَتَيْتُهُ فَقَالَ شَبِيبٌ إِنِّي لَمْ أَسْمَعْهُ مِنْ عُرْوَةَ، قَالَ سَمِعْتُ الْحَىَّ يُخْبِرُونَهُ عَنْهُ‏.‏ وَلَكِنْ سَمِعْتُهُ يَقُولُ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ ‏ "‏ الْخَيْرُ مَعْقُودٌ بِنَوَاصِي الْخَيْلِ إِلَى يَوْمِ الْقِيَامَةِ ‏" ‏‏.‏ قَالَ وَقَدْ رَأَيْتُ فِي دَارِهِ سَبْعِينَ فَرَسًا‏.‏ قَالَ سُفْيَانُ يَشْتَرِي لَهُ شَاةً كَأَنَّهَا أُضْحِيَّةٌ‏.‏